Neurosarcoidosis or granulomatosis with polyangiitis? A complex case of a brain mass / Alejandro Vélez Hoyos ; Luis Fernando Pinto Peñaranda ; Jiménez Arcia, Luisa Fernanda ; Crespo Vizcaíno, Estiven ; González Montoya, Alexandra  

Público ISBD Título : Neurosarcoidosis or granulomatosis with polyangiitis? A complex case of a brain mass Tipo de documento : documento electrónico Autores : Alejandro Vélez Hoyos, Autor ; Luis Fernando Pinto Peñaranda, Autor ; Jiménez Arcia, Luisa Fernanda, Autor ; Crespo Vizcaíno, Estiven, Autor ; González Montoya, Alexandra, Autor Fecha de publicación : 2025 Títulos uniformes : Modern Rheumatology Case Reports Idioma : Inglés (eng) Palabras clave : Neurosarcoidosis  sarcoidosis  granulomatosis with polyangiitis  chronic granulomatous inflammation  pachymeningitis Resumen : Sarcoidosis is an immune-mediated systemic disease characterised by the presence of non-caseating granulomas in various parts of the body in the absence of another defined aetiology. Neurologic involvement [neurosarcoidosis (NS)], which occurs in 5–10% of patients with the disease, encompasses a range of clinical and histopathological manifestations that can lead to significant morbidity and mortality. We present a case of a young man with a history of chronic sinusitis, who developed sudden headache associated with seizures. After thorough clinical and paraclinical evaluation, the diagnosis of NS was made once other neurovascular, infectious, metabolic, tumour-related, and immune-mediated aetiologies were ruled out. NS can present as a large dural mass due to nodular pachymeningitis, which can be clinically indistinguishable from other entities such as neoplasms and granulomatosis with polyangiitis. Isolated central nervous system involvement in this entity is rare and usually it is associated with other systemic manifestations. More aggressive management is required to treat this form of sarcoidosis presentation. NS represents a diagnostic challenge and requires ruling out more common entities such as infectious and non-infectious causes like granulomatosis with polyangiitis. Mención de responsabilidad : Vélez Hoyos, Alejandro, Pinto Peñaranda, Luis Fernando, Jiménez Arcia, Luisa Fernanda, Crespo Vizcaíno, Estiven, González Montoya, Alexandra. Referencia : Modern Rheumatology Case Reports, 2025;, rxaf019, DOI (Digital Object Identifier) : 10.1093/mrcr/rxaf019 Derechos de uso : CC BY-NC-ND En línea : https://academic.oup.com/mrcr/advance-article-abstract/doi/10.1093/mrcr/rxaf019/ [...] Enlace permanente : https://hospitalpablotobon.cloudbiteca.com/pmb/opac_css/index.php?lvl=notice_dis Neurosarcoidosis or granulomatosis with polyangiitis? A complex case of a brain mass [documento electrónico] / Alejandro Vélez Hoyos, Autor ; Luis Fernando Pinto Peñaranda, Autor ; Jiménez Arcia, Luisa Fernanda, Autor ; Crespo Vizcaíno, Estiven, Autor ; González Montoya, Alexandra, Autor . - 2025. Obra : Modern Rheumatology Case Reports Idioma : Inglés (eng) Palabras clave : Neurosarcoidosis  sarcoidosis  granulomatosis with polyangiitis  chronic granulomatous inflammation  pachymeningitis Resumen : Sarcoidosis is an immune-mediated systemic disease characterised by the presence of non-caseating granulomas in various parts of the body in the absence of another defined aetiology. Neurologic involvement [neurosarcoidosis (NS)], which occurs in 5–10% of patients with the disease, encompasses a range of clinical and histopathological manifestations that can lead to significant morbidity and mortality. We present a case of a young man with a history of chronic sinusitis, who developed sudden headache associated with seizures. After thorough clinical and paraclinical evaluation, the diagnosis of NS was made once other neurovascular, infectious, metabolic, tumour-related, and immune-mediated aetiologies were ruled out. NS can present as a large dural mass due to nodular pachymeningitis, which can be clinically indistinguishable from other entities such as neoplasms and granulomatosis with polyangiitis. Isolated central nervous system involvement in this entity is rare and usually it is associated with other systemic manifestations. More aggressive management is required to treat this form of sarcoidosis presentation. NS represents a diagnostic challenge and requires ruling out more common entities such as infectious and non-infectious causes like granulomatosis with polyangiitis. Mención de responsabilidad : Vélez Hoyos, Alejandro, Pinto Peñaranda, Luis Fernando, Jiménez Arcia, Luisa Fernanda, Crespo Vizcaíno, Estiven, González Montoya, Alexandra. Referencia : Modern Rheumatology Case Reports, 2025;, rxaf019, DOI (Digital Object Identifier) : 10.1093/mrcr/rxaf019 Derechos de uso : CC BY-NC-ND En línea : https://academic.oup.com/mrcr/advance-article-abstract/doi/10.1093/mrcr/rxaf019/ [...] Enlace permanente : https://hospitalpablotobon.cloudbiteca.com/pmb/opac_css/index.php?lvl=notice_dis

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Thyroid Cancer Staging: Historical Evolution and Analysis From Macrocarcinoma to Microcarcinoma / Carlos Esteban Builes Montaño ; Londoño Bustamante, Andrés Felipe ; Julio Andrés Valencia Ferro ; Duque, Carlos S. ; Tobón Ospina, Catalina ; Alejandro Vélez Hoyos ; Sánchez, Juan G. ; Agudelo, Miguel ; Dueñas, Juan P. ; Palacio, Maria F. ; Sierra, Natalia  

Público ISBD Título : Thyroid Cancer Staging: Historical Evolution and Analysis From Macrocarcinoma to Microcarcinoma Tipo de documento : documento electrónico Autores : Carlos Esteban Builes Montaño, Autor ; Londoño Bustamante, Andrés Felipe, Autor ; Julio Andrés Valencia Ferro, Autor ; Duque, Carlos S., Autor ; Tobón Ospina, Catalina, Autor ; Alejandro Vélez Hoyos, Autor ; Sánchez, Juan G., Autor ; Agudelo, Miguel, Autor ; Dueñas, Juan P., Autor ; Palacio, Maria F., Autor ; Sierra, Natalia, Autor Fecha de publicación : 2025 Títulos uniformes : Cureus Idioma : Inglés (eng) Idioma original : Inglés (eng) Palabras clave : classification  prognosis  risk  staging  surgery  thyroid cancer  tnm Resumen : The classification of thyroid cancer diagnosis and treatment has evolved dramatically since the Union for International Cancer Control (UICC) published the first staging system in 1968. A careful review of the eight published editions of well-differentiated thyroid cancer (WDTC) staging by the UICC and the American Joint Committee on Cancer (AJCC) was performed. Each edition was analyzed to clearly understand which development published and accepted by specialists treating thyroid cancer justified considering a new updated edition. This study presents a comprehensive review of the remarkable evolution of thyroid cancer staging, highlighting the various changes in several areas throughout the years and editions. There were surprising changes within the eight publications: the tumor size was progressively reduced from 4 cm in the first AJCC volume to less than 1 cm in the seventh and eighth UICC and AJCC editions, classifying these small, WDTCs known up to now as “microcarcinomas.” Extrathyroidal extension was accepted after the third edition; this description certainly plays a key role in today’s decisions to manage this tumor as a prognostic factor. The age specification of 45 years prevailed for seven consecutive publications until it was raised to 55 years in the eighth thyroid cancer staging system. Without a doubt, this iconic change allowed physicians around the world to give their 45-year-old thyroid cancer patients a more encouraging panorama of the disease with the new classification. Over the course of nearly 57 years, thyroid cancer staging has undergone remarkable changes, reaching a level of certainty that not only provides recommendations for safer treatments with less surgery and adjunctive measures but also improves survival rates and patient safety. Mención de responsabilidad : Carlos S. Duque , Carlos E. Builes-Montaño , Catalina Tobón-Ospina , Alejandro Velez Hoyos , Juan G. Sánchez , Andres F. Londoño , Miguel Agudelo , Julio A. Valencia , Juan P. Dueñas , Maria F. Palacio , Natalia Sierra Referencia : Cureus 17(4): e81972. DOI (Digital Object Identifier) : 10.7759/cureus.81972 Derechos de uso : CC BY-NC-ND En línea : https://www.cureus.com/articles/350600-thyroid-cancer-staging-historical-evoluti [...] Enlace permanente : https://hospitalpablotobon.cloudbiteca.com/pmb/opac_css/index.php?lvl=notice_dis Thyroid Cancer Staging: Historical Evolution and Analysis From Macrocarcinoma to Microcarcinoma [documento electrónico] / Carlos Esteban Builes Montaño, Autor ; Londoño Bustamante, Andrés Felipe, Autor ; Julio Andrés Valencia Ferro, Autor ; Duque, Carlos S., Autor ; Tobón Ospina, Catalina, Autor ; Alejandro Vélez Hoyos, Autor ; Sánchez, Juan G., Autor ; Agudelo, Miguel, Autor ; Dueñas, Juan P., Autor ; Palacio, Maria F., Autor ; Sierra, Natalia, Autor . - 2025. Obra : Cureus Idioma : Inglés (eng) Idioma original : Inglés (eng) Palabras clave : classification  prognosis  risk  staging  surgery  thyroid cancer  tnm Resumen : The classification of thyroid cancer diagnosis and treatment has evolved dramatically since the Union for International Cancer Control (UICC) published the first staging system in 1968. A careful review of the eight published editions of well-differentiated thyroid cancer (WDTC) staging by the UICC and the American Joint Committee on Cancer (AJCC) was performed. Each edition was analyzed to clearly understand which development published and accepted by specialists treating thyroid cancer justified considering a new updated edition. This study presents a comprehensive review of the remarkable evolution of thyroid cancer staging, highlighting the various changes in several areas throughout the years and editions. There were surprising changes within the eight publications: the tumor size was progressively reduced from 4 cm in the first AJCC volume to less than 1 cm in the seventh and eighth UICC and AJCC editions, classifying these small, WDTCs known up to now as “microcarcinomas.” Extrathyroidal extension was accepted after the third edition; this description certainly plays a key role in today’s decisions to manage this tumor as a prognostic factor. The age specification of 45 years prevailed for seven consecutive publications until it was raised to 55 years in the eighth thyroid cancer staging system. Without a doubt, this iconic change allowed physicians around the world to give their 45-year-old thyroid cancer patients a more encouraging panorama of the disease with the new classification. Over the course of nearly 57 years, thyroid cancer staging has undergone remarkable changes, reaching a level of certainty that not only provides recommendations for safer treatments with less surgery and adjunctive measures but also improves survival rates and patient safety. Mención de responsabilidad : Carlos S. Duque , Carlos E. Builes-Montaño , Catalina Tobón-Ospina , Alejandro Velez Hoyos , Juan G. Sánchez , Andres F. Londoño , Miguel Agudelo , Julio A. Valencia , Juan P. Dueñas , Maria F. Palacio , Natalia Sierra Referencia : Cureus 17(4): e81972. DOI (Digital Object Identifier) : 10.7759/cureus.81972 Derechos de uso : CC BY-NC-ND En línea : https://www.cureus.com/articles/350600-thyroid-cancer-staging-historical-evoluti [...] Enlace permanente : https://hospitalpablotobon.cloudbiteca.com/pmb/opac_css/index.php?lvl=notice_dis

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Highlights of infectious agents in tissue / Alejandro Vélez Hoyos  

Público ISBD Título : Highlights of infectious agents in tissue Tipo de documento : documento electrónico Autores : Alejandro Vélez Hoyos, Fecha de publicación : 2022 Títulos uniformes : Pathology Idioma : Inglés (eng) Palabras clave : Infectious pathology  inflammatory patterns  special stains  pitfalls in interpretation Resumen : The evolution of the diagnosis of infectious diseases began with the observation of the morphological characteristics of organisms such as ascaris and whipworms, followed by the use of the microscope and haematoxylin and eosin stains, which allowed recognition of microscopic characteristics undetectable with the naked eye, such as the viral cytopathic changes of herpes and the presence of fungi. Patterns of acute and chronic granulomatous inflammation were also observed; these were not specific to the exact aetiology of the disease, which led to the introduction of special methenamine stains for fungi and Ziehl–Neelsen for fungi and mycobacteria. Later, the use of immunohistochemistry was introduced, which acknowledged the use of antibodies to classify microorganisms and detect cases that were either difficult to interpret or in the midst of severe inflammatory processes. Currently, the use of molecular biology has made it possible to reach diagnoses that would have been very difficult to obtain through traditional methods; these techniques show key specific characteristics and facilitate the diagnosis of various infectious pathologies. These new techniques are based on the detection of antigens and nucleic acids of microorganisms, an important advance in the diagnosis of infectious diseases. Mención de responsabilidad : Alejandro Velez-Hoyos, Guillermo A.Jimenez-tobon Referencia : Pathology. 2022 Mar;54(2):217-224. DOI (Digital Object Identifier) : 10.1016/j.pathol.2021.10.004 PMID : 35063292 En línea : https://linkinghub.elsevier.com/retrieve/pii/S0031302521005432 Enlace permanente : https://hospitalpablotobon.cloudbiteca.com/pmb/opac_css/index.php?lvl=notice_dis Highlights of infectious agents in tissue [documento electrónico] / Alejandro Vélez Hoyos,  . - 2022. Obra : Pathology Idioma : Inglés (eng) Palabras clave : Infectious pathology  inflammatory patterns  special stains  pitfalls in interpretation Resumen : The evolution of the diagnosis of infectious diseases began with the observation of the morphological characteristics of organisms such as ascaris and whipworms, followed by the use of the microscope and haematoxylin and eosin stains, which allowed recognition of microscopic characteristics undetectable with the naked eye, such as the viral cytopathic changes of herpes and the presence of fungi. Patterns of acute and chronic granulomatous inflammation were also observed; these were not specific to the exact aetiology of the disease, which led to the introduction of special methenamine stains for fungi and Ziehl–Neelsen for fungi and mycobacteria. Later, the use of immunohistochemistry was introduced, which acknowledged the use of antibodies to classify microorganisms and detect cases that were either difficult to interpret or in the midst of severe inflammatory processes. Currently, the use of molecular biology has made it possible to reach diagnoses that would have been very difficult to obtain through traditional methods; these techniques show key specific characteristics and facilitate the diagnosis of various infectious pathologies. These new techniques are based on the detection of antigens and nucleic acids of microorganisms, an important advance in the diagnosis of infectious diseases. Mención de responsabilidad : Alejandro Velez-Hoyos, Guillermo A.Jimenez-tobon Referencia : Pathology. 2022 Mar;54(2):217-224. DOI (Digital Object Identifier) : 10.1016/j.pathol.2021.10.004 PMID : 35063292 En línea : https://linkinghub.elsevier.com/retrieve/pii/S0031302521005432 Enlace permanente : https://hospitalpablotobon.cloudbiteca.com/pmb/opac_css/index.php?lvl=notice_dis

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Molecular profiling of papillary thyroid carcinomas in healthcare workers exposed to low dose radiation at the workplace / Carlos Simón Duque Fisher ; Alejandro Vélez Hoyos ; Juan Pablo Dueñas Muñoz  

Público ISBD Título : Molecular profiling of papillary thyroid carcinomas in healthcare workers exposed to low dose radiation at the workplace Tipo de documento : documento electrónico Autores : Carlos Simón Duque Fisher, ; Alejandro Vélez Hoyos, ; Juan Pablo Dueñas Muñoz, Fecha de publicación : 2022 Títulos uniformes : Endocrine Idioma : Inglés (eng) Palabras clave : Healthcare specialists  Papillary thyroid carcinoma (PTC)  Radiation  ThyroSeq  Thyroid cancer Resumen : Purpose: Exposure to ionizing radiation, especially during childhood, is a well-established risk factor for thyroid cancer. The vast majority of radiation-induced cancers are papillary carcinomas (PTCs). These tumors typically have gene fusions in contrast to point mutations prevalent in sporadic PTCs. The aim of this study was to investigate the molecular profiles of PTC patients with workplace exposure to ionizing radiation. Methods: A retrospective review of 543 patients who underwent surgery with diagnosis of PTC was performed. A cohort of nine healthcare specialists previously exposed to radiation sources during their professional practice was selected and analyzed using the ThyroSeq mutation panel for point mutations and gene fusions associated with thyroid cancer. Results: The molecular analysis of surgical samples of PTCs was informative and revealed genetic alterations in five patients. BRAF V600E was found in four (67%) cases whereas RET/PTC1 fusion in one (17%) and one sample (17%) was wild type for point mutations and fusions. One sample completely failed molecular analysis while two others were negative for genes fusions but failed DNA analysis; these three samples were excluded. Conclusions: In this limited cohort of healthcare workers exposed to low dose of ionizing radiation at the workplace and developed PTC, the molecular profiling determined BRAF V600E point mutation as the most common event, arguing against the role of workplace radiation exposure in the etiology of these tumors. Mención de responsabilidad : Carlos S. Duque, Alejandro Vélez, Jorge Cuartas, Fabian Jaimes, Juan Pablo Dueñas, Miguel Agudelo, Marina N. Nikiforova, Yuri E. Nikiforov & Vincenzo Condello Referencia : Endocrine. 2022 Apr;76(1):95-100. DOI (Digital Object Identifier) : 10.1007/s12020-021-02972-y PMID : 35094311 En línea : https://link.springer.com/article/10.1007/s12020-021-02972-y Enlace permanente : https://hospitalpablotobon.cloudbiteca.com/pmb/opac_css/index.php?lvl=notice_dis Molecular profiling of papillary thyroid carcinomas in healthcare workers exposed to low dose radiation at the workplace [documento electrónico] / Carlos Simón Duque Fisher, ; Alejandro Vélez Hoyos, ; Juan Pablo Dueñas Muñoz,  . - 2022. Obra : Endocrine Idioma : Inglés (eng) Palabras clave : Healthcare specialists  Papillary thyroid carcinoma (PTC)  Radiation  ThyroSeq  Thyroid cancer Resumen : Purpose: Exposure to ionizing radiation, especially during childhood, is a well-established risk factor for thyroid cancer. The vast majority of radiation-induced cancers are papillary carcinomas (PTCs). These tumors typically have gene fusions in contrast to point mutations prevalent in sporadic PTCs. The aim of this study was to investigate the molecular profiles of PTC patients with workplace exposure to ionizing radiation. Methods: A retrospective review of 543 patients who underwent surgery with diagnosis of PTC was performed. A cohort of nine healthcare specialists previously exposed to radiation sources during their professional practice was selected and analyzed using the ThyroSeq mutation panel for point mutations and gene fusions associated with thyroid cancer. Results: The molecular analysis of surgical samples of PTCs was informative and revealed genetic alterations in five patients. BRAF V600E was found in four (67%) cases whereas RET/PTC1 fusion in one (17%) and one sample (17%) was wild type for point mutations and fusions. One sample completely failed molecular analysis while two others were negative for genes fusions but failed DNA analysis; these three samples were excluded. Conclusions: In this limited cohort of healthcare workers exposed to low dose of ionizing radiation at the workplace and developed PTC, the molecular profiling determined BRAF V600E point mutation as the most common event, arguing against the role of workplace radiation exposure in the etiology of these tumors. Mención de responsabilidad : Carlos S. Duque, Alejandro Vélez, Jorge Cuartas, Fabian Jaimes, Juan Pablo Dueñas, Miguel Agudelo, Marina N. Nikiforova, Yuri E. Nikiforov & Vincenzo Condello Referencia : Endocrine. 2022 Apr;76(1):95-100. DOI (Digital Object Identifier) : 10.1007/s12020-021-02972-y PMID : 35094311 En línea : https://link.springer.com/article/10.1007/s12020-021-02972-y Enlace permanente : https://hospitalpablotobon.cloudbiteca.com/pmb/opac_css/index.php?lvl=notice_dis

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Tiroiditis subaguda y tirotoxicosis posterior a vacuna contra SARS-CoV-2: reporte de 2 casos / Isabel Cristina Ramírez Sánchez ; Carlos Esteban Builes Montaño ; Alejandro Vélez Hoyos    

Público ISBD Título : Tiroiditis subaguda y tirotoxicosis posterior a vacuna contra SARS-CoV-2: reporte de 2 casos Otros títulos : Subacute thyroiditis and thyrotoxicosis after SARS-CoV-2 vaccine: report of 2 cases Tipo de documento : documento electrónico Autores : Isabel Cristina Ramírez Sánchez, ; Carlos Esteban Builes Montaño, ; Alejandro Vélez Hoyos, Fecha de publicación : 2022 Títulos uniformes : Medicina & Laboratorio Idioma : Español (spa) Palabras clave : COVID-19  vacuna  ARN mensajero  adenovirus  tiroiditis  bocio Resumen : La enfermedad por coronavirus SARS-CoV-2 que surgió en el año 2019 (COVID-19), ha obligado al rápido desarrollo de vacunas para prevenir su propagación e intentar controlar la pandemia. Dentro de las vacunas desarrolladas, las primeras en ser aprobadas con una tecnología nueva en el campo de la vacunación, fueron las vacunas basadas en ARNm (ácido ribonucleico mensajero), que lograron tasas de efectividad cercanas al 95 % para la prevención de la enfermedad COVID-19 grave. Los eventos adversos comunes son reacciones locales leves, pero ha habido varios informes de pacientes que desarrollaron tiroiditis subaguda y disfunción tiroidea después de recibir la vacuna contra SARS-CoV-2. Este artículo presenta dos casos de tiroiditis subaguda poco después de recibir la vacuna contra COVID-19. Mención de responsabilidad : Myriam Vanessa Rueda-Galvis, Isabel Cristina Ramírez-Sánchez, Carlos E. Builes-Montaño, Alejandro Vélez-Hoyos DOI (Digital Object Identifier) : 10.36384/01232576.609 Derechos de uso : CC BY-NC-ND En línea : https://medicinaylaboratorio.com/index.php/myl/article/view/609 Enlace permanente : https://hospitalpablotobon.cloudbiteca.com/pmb/opac_css/index.php?lvl=notice_dis Tiroiditis subaguda y tirotoxicosis posterior a vacuna contra SARS-CoV-2: reporte de 2 casos = Subacute thyroiditis and thyrotoxicosis after SARS-CoV-2 vaccine: report of 2 cases [documento electrónico] / Isabel Cristina Ramírez Sánchez, ; Carlos Esteban Builes Montaño, ; Alejandro Vélez Hoyos,  . - 2022. Obra : Medicina & Laboratorio Idioma : Español (spa) Palabras clave : COVID-19  vacuna  ARN mensajero  adenovirus  tiroiditis  bocio Resumen : La enfermedad por coronavirus SARS-CoV-2 que surgió en el año 2019 (COVID-19), ha obligado al rápido desarrollo de vacunas para prevenir su propagación e intentar controlar la pandemia. Dentro de las vacunas desarrolladas, las primeras en ser aprobadas con una tecnología nueva en el campo de la vacunación, fueron las vacunas basadas en ARNm (ácido ribonucleico mensajero), que lograron tasas de efectividad cercanas al 95 % para la prevención de la enfermedad COVID-19 grave. Los eventos adversos comunes son reacciones locales leves, pero ha habido varios informes de pacientes que desarrollaron tiroiditis subaguda y disfunción tiroidea después de recibir la vacuna contra SARS-CoV-2. Este artículo presenta dos casos de tiroiditis subaguda poco después de recibir la vacuna contra COVID-19. Mención de responsabilidad : Myriam Vanessa Rueda-Galvis, Isabel Cristina Ramírez-Sánchez, Carlos E. Builes-Montaño, Alejandro Vélez-Hoyos DOI (Digital Object Identifier) : 10.36384/01232576.609 Derechos de uso : CC BY-NC-ND En línea : https://medicinaylaboratorio.com/index.php/myl/article/view/609 Enlace permanente : https://hospitalpablotobon.cloudbiteca.com/pmb/opac_css/index.php?lvl=notice_dis

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Documentos electrónicos

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Manual de citología / Alejandro Vélez Hoyos  

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Receptores tiroideos de estrógenos y progesterona: cumplen estos una función en el desarrollo del cáncer papilar de tiroides en los hombres? / Carlos Simón Duque Fisher ; Alejandro Vélez Hoyos ; Andrés Felipe Londoño Bustamante ; Juan Pablo Dueñas Muñoz ; John Jairo Zuleta Tobón    

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Carcinoma papilar de tiroides variante de células en tachuela: Reporte de caso y revisión de la literatura / Alejandro Vélez Hoyos  

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Haplotype analysis of the internationally distributed BRCA1 c.3331_3334delCAAG founder mutation reveals a common ancestral origin in Iberia / Alejandro Vélez Hoyos    

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Human epidermal growth factor receptor 2–positive breast cancer is associated with indigenous american ancestry in Latin American women / Alejandro Vélez Hoyos ; Jorge Hernando Donado Gómez  

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Mitología griega y romana asociada con algunos términos en patología / Alejandro Vélez Hoyos  

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Tuberculosis urogenital en un paciente con falla renal, estado del arte / John Fredy Nieto Ríos ; Alejandro Vélez Hoyos    

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BRAF and TERT mutations in papillary thyroid cancer patients of Latino ancestry / Jorge Hernando Donado Gómez ; Carlos Simón Duque Fisher ; Alejandro Vélez Hoyos    

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Cuerpos vegetales en histopatología / Alejandro Vélez Hoyos    

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Endometriosis de la pared abdominal: estudio descriptivo de una serie de 21 casos / Alejandro Vélez Hoyos    

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Enfermedad quística renal en pediatría. A propósito de un caso de difícil diagnóstico / Alejandro Vélez Hoyos ; Juan Camilo Pérez Cadavid  

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Leiomiosarcoma primario de corazón: Reporte de caso y revisión de la literatura / Juan Camilo Pérez Cadavid ; Alejandro Vélez Hoyos  

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Uso de la simulación en la enseñanza de la patología quirúrgica / Alejandro Vélez Hoyos    

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Rhinosporidiosis in Colombia: case series and literature review / Alejandro Vélez Hoyos ; Alicia Inés Hidrón Botero  

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Utilidad de la 18F/FDG PET/TC en la valoración de tumores de la vaina nerviosa / Mónica Alexandra Vidal González ; Juan Esteban López Amaya ; Alejandro Vélez Hoyos  

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Cavernosopatía traumática crónica. Un nuevo síndrome de fibrosis peneana / Juan Fernando Uribe Arcila ; Alejandro Vélez Hoyos ; John Jairo Zuleta Tobón ; Carlos Alberto Uribe Trujillo    

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Malacoplakia in Urologic Specimen / Matilde Henao Velásquez ; Alejandro Vélez Hoyos ; Federico Gaviria Gil  

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Malakoplakia after kidney transplantation: Case report and literature review / John Fredy Nieto Ríos ; Isabel Cristina Ramírez Sánchez ; Lina Maria Serna Higuita ; Alejandro Vélez Hoyos ; Federico Gaviria Gil  

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Adenoma trabecular hialinizante (ATH) de tiroides: reporte de dos casos / Carlos Simón Duque Fisher ; Juan Camilo Pérez Cadavid ; Alejandro Vélez Hoyos  

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Clinical features of Hispanic thyroid cancer cases and the role of known genetic variants on disease risk / Carlos Simón Duque Fisher ; Alejandro Vélez Hoyos ; Jorge Hernando Donado Gómez  

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Clinical manifestations of colorectal cancer patients from a large multicenter study in Colombia / Alejandro Vélez Hoyos ; José Ignacio Restrepo Restrepo ; Juan Ricardo Márquez Velásquez  

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Parathyroid cysts: the Latin-American experience / Karen Palacios ; Juan Camilo Pérez Cadavid ; Alejandro Vélez Hoyos ; Carlos Simón Duque Fisher  

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Patología / Rafael Andrade P. ; Rodrigo Restrepo M. ; Alejandro Vélez Hoyos

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Revisión de biopsias de próstata en un centro de nivel IV de complejidad: ¿realmente hay diferencias? / Adrián Ramiro Lopera Toro ; José Jaime Correa Ochoa ; Carlos Humberto Martínez González ; Alejandro Vélez Hoyos ; Marcela Riveros Ángel  

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Teratoma de tiroides, reporte de caso / Alejandro Vélez Hoyos    

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The HABP2 G534E polymorphism does not increase nonmedullary thyroid cancer risk in Hispanics / Carlos Simón Duque Fisher ; Jorge Hernando Donado Gómez ; Alejandro Vélez Hoyos    

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Tumor fibroso solitario de la glándula tiroides con extensión intratorácica / Carlos Simón Duque Fisher ; Willfredy Castaño Ruiz ; Andrés Zerrate Misas ; Alejandro Vélez Hoyos    

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Tumores renales bilaterales sincrónicos de células claras con trombo tumoral bilateral, reporte de caso / José Jaime Correa Ochoa ; Alejandro Vélez Hoyos ; Marcela Riveros Ángel ; Carlos Humberto Martínez González  

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Adrenal venous sampling in a patient with adrenal Cushing syndrome / Carlos Esteban Builes Montaño ; Santiago Echeverri Isaza ; Alejandro Vélez Hoyos ; Carlos Andrés Villa Franco    

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Computer-aided prostate cancer diagnosis from digitized histopathology: a review on texture-based systems / Alejandro Vélez Hoyos  

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Malignant Transformation of Hymenolepis nana in a Human Host / Alejandro Vélez Hoyos ; Alicia Inés Hidrón Botero ; Carlos Andrés Agudelo  

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Molecular identification of Coccidioides immitis in formalin-fixed, paraffin-embedded (FFPE) tissues from a Colombian patient / Alejandro Vélez Hoyos  

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The 8q24 rs6983267G variant is associated with increased thyroid cancer risk / Alejandro Vélez Hoyos ; Carlos Simón Duque Fisher ; Alejandro Rios  

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Actualización del reporte de biopsia por aspiración con aguja fina de mama / Alejandro Vélez Hoyos ; Juan David Figueroa Cuesta ; Carlos Mario González Vásquez ; Ana María Bedoya Londoño ; William de Jesús Quiceno Calderón  

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Carlos Juan Finlay, el Pasteur latinoamericano / Alejandro Vélez Hoyos  

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Criterios diagnósticos en 400 biopsias de adenocarcinoma de próstata / Alejandro Vélez Hoyos ; José Jaime Correa Ochoa ; Carlos Humberto Martínez González ; Carlos Alberto Uribe Trujillo ; Juan Camilo Pérez Cadavid    

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Fibroadenoma vulvar: reporte de un caso y revisión de la literatura / Alejandro Vélez Hoyos    

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Genome-wide association study of breast cancer in Latinas identifies novel protective variants on 6q25 / Alejandro Vélez Hoyos    

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Síndrome de Cushing secundario a carcinoma medular de tiroides: descripción de un caso y revisión de la literatura / Johnayro Gutiérrez Restrepo ; Alejandro Vélez Hoyos ; Juan Camilo Pérez Cadavid    

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Consenso médico de biopsia por aspiración con aguja fina de tiroides. Reporte de citología tiroidea basado en el sistema de Bethesda / Alejandro Vélez Hoyos ; Gabriel Jaime Varela Aguirre ; Victoria Eugenia Murillo Echeverri ; Juan Camilo Pérez Cadavid ; Javier Rendón Henao ; Ana María Bedoya Londoño ; Beatriz Helena Aristizábal Bernal ; Germán Campuzano Zuluaga ; Juan Pablo Dueñas Muñoz ; Carlos Simón Duque Fisher ; Álvaro Enrique Sanabria Quiroga ; Natalia Aristizábal Henao ; Carlos Esteban Builes Montaño ; Clara María Arango Toro ; Johnayro Gutiérrez Restrepo ; Julian F. Montoya ; José Fernando Botero A. ; Alejandro Carvajal ; Lina García ; Carlos Mario González Vásquez ; Alejandro Rios  

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Mesenteritis esclerosante idiopática en la edad pediátrica: presentación de un caso clínico / Jorge Alberto Rivera Echeverry ; Mónica María Contreras Ramírez ; Alejandro Vélez Hoyos    

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Nódulo de la Hermana María José: un reporte de caso / Alejandro Vélez Hoyos    

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Nódulo tiroideo, enfoque y manejo. Revisión de la literatura / Alejandro Vélez Hoyos ; Johnayro Gutiérrez Restrepo    

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Struma ovarii con un foco de micro-carcinoma papilar variante folicular de tiroides: reporte de caso y revisión de la literatura / Carlos Esteban Builes Montaño ; Johnayro Gutiérrez Restrepo ; Alejandro Vélez Hoyos  

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An Incidental Finding From a Blood Smear / Alicia Inés Hidrón Botero ; Kenny Mauricio Gálvez Cárdenas ; Lina Marcela Arcila Duque ; Juan Camilo Pérez Cadavid ; Alejandro Vélez Hoyos  

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