Reproducibility of a protocol for standardized reading of chest X-rays of children household contact of patients with tuberculosis / Lina Marcela Cadavid Álvarez ; Lucila Beatriz Molinares Arevalo    

Público ISBD Título : Reproducibility of a protocol for standardized reading of chest X-rays of children household contact of patients with tuberculosis Tipo de documento : documento electrónico Autores : Lina Marcela Cadavid Álvarez, ; Lucila Beatriz Molinares Arevalo, Fecha de publicación : 2022 Títulos uniformes : BMC Pediatrics Idioma : Inglés (eng) Palabras clave : Tuberculosis  Pulmonary  Latent Tuberculosis  Clinical Protocols  Radiography  Thoracic  Observer Variation  Reproducibility of Results Resumen : Background: The interpretation of the chest radiograph may vary because it depends on the reader and due to the non-specificity of findings in tuberculosis (TB). We aim to assess the reproducibility of a standardized chest radiograph reading protocol in contacts of patients with pulmonary TB under the 5 years of age. Methods: Descriptive, cross-sectional study with children under the age of five, household contacts of patients with confirmed pulmonary TB from Medellín, Bello and Itagüí (Colombia) between Jan-01-2015 and May-31-2016. Standardized reading protocol: two radiologists, blinded independent reading, use of template (Dr. Andronikou design) in case of disagreement a third reading was performed. Kappa coefficient for intra and inter observer agreement, and prevalence ratio were estimated of sociodemographic characteristics, TB exposure and interpretation of chest X-ray. Results: From 278 children, standardized reading found 255 (91.7%) normal X-rays, 10 (3.6%) consistent with TB, and 13 (4.7%) other alterations. Global agreement was 91.3% (Kappa = 0.51). Inter-observer agreement between readers 1-2 was 90.0% (Kappa = 0.59) and 1-3 93.2% (Kappa = 0.59). Intra-observer agreement for reader 1 was 95.5% (Kappa = 0.86), 2 84.0% (Kappa = 0.51), and 3 94.7% (Kappa = 0.68). Greater inter-observer disagreement was between readers 1-2 for soft tissue density suggestive of adenopathy (4.6%), airspace opacification (1.17%) and pleural effusion (0.58%); between readers 1-3 for soft tissue density suggestive of adenopathy (4.2%), opacification of airspace (2.5%) and cavities (0.8%). Conclusions: Chest radiographs are an affordable tool that contributes to the diagnosis of TB, so having a standardized reading protocol showed good agreement and improves the reproducibility of radiograph interpretation. Mención de responsabilidad : María Margarita Lozano-Acosta, María Alejandra Rubiano-Arenas, Lina Marcela Cadavid, Guillermo Vélez-Parra, Beatriz Molinares, Diana Marcela Marín-Pineda, María Patricia Arbeláez-Montoya & Dione Benjumea-Bedoya Referencia : BMC Pediatr. 2022 May 24;22(1):307. DOI (Digital Object Identifier) : 10.1186/s12887-022-03347-6 PMID : 35610599 Derechos de uso : CC BY En línea : https://bmcpediatr.biomedcentral.com/articles/10.1186/s12887-022-03347-6 Enlace permanente : https://hospitalpablotobon.cloudbiteca.com/pmb/opac_css/index.php?lvl=notice_display&id=6082 Reproducibility of a protocol for standardized reading of chest X-rays of children household contact of patients with tuberculosis [documento electrónico] / Lina Marcela Cadavid Álvarez, ; Lucila Beatriz Molinares Arevalo,  . - 2022. Obra : BMC Pediatrics Idioma : Inglés (eng) Palabras clave : Tuberculosis  Pulmonary  Latent Tuberculosis  Clinical Protocols  Radiography  Thoracic  Observer Variation  Reproducibility of Results Resumen : Background: The interpretation of the chest radiograph may vary because it depends on the reader and due to the non-specificity of findings in tuberculosis (TB). We aim to assess the reproducibility of a standardized chest radiograph reading protocol in contacts of patients with pulmonary TB under the 5 years of age. Methods: Descriptive, cross-sectional study with children under the age of five, household contacts of patients with confirmed pulmonary TB from Medellín, Bello and Itagüí (Colombia) between Jan-01-2015 and May-31-2016. Standardized reading protocol: two radiologists, blinded independent reading, use of template (Dr. Andronikou design) in case of disagreement a third reading was performed. Kappa coefficient for intra and inter observer agreement, and prevalence ratio were estimated of sociodemographic characteristics, TB exposure and interpretation of chest X-ray. Results: From 278 children, standardized reading found 255 (91.7%) normal X-rays, 10 (3.6%) consistent with TB, and 13 (4.7%) other alterations. Global agreement was 91.3% (Kappa = 0.51). Inter-observer agreement between readers 1-2 was 90.0% (Kappa = 0.59) and 1-3 93.2% (Kappa = 0.59). Intra-observer agreement for reader 1 was 95.5% (Kappa = 0.86), 2 84.0% (Kappa = 0.51), and 3 94.7% (Kappa = 0.68). Greater inter-observer disagreement was between readers 1-2 for soft tissue density suggestive of adenopathy (4.6%), airspace opacification (1.17%) and pleural effusion (0.58%); between readers 1-3 for soft tissue density suggestive of adenopathy (4.2%), opacification of airspace (2.5%) and cavities (0.8%). Conclusions: Chest radiographs are an affordable tool that contributes to the diagnosis of TB, so having a standardized reading protocol showed good agreement and improves the reproducibility of radiograph interpretation. Mención de responsabilidad : María Margarita Lozano-Acosta, María Alejandra Rubiano-Arenas, Lina Marcela Cadavid, Guillermo Vélez-Parra, Beatriz Molinares, Diana Marcela Marín-Pineda, María Patricia Arbeláez-Montoya & Dione Benjumea-Bedoya Referencia : BMC Pediatr. 2022 May 24;22(1):307. DOI (Digital Object Identifier) : 10.1186/s12887-022-03347-6 PMID : 35610599 Derechos de uso : CC BY En línea : https://bmcpediatr.biomedcentral.com/articles/10.1186/s12887-022-03347-6 Enlace permanente : https://hospitalpablotobon.cloudbiteca.com/pmb/opac_css/index.php?lvl=notice_display&id=6082

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Malignant peripheral nerve sheath tumor in a child / Lina Marcela Cadavid Álvarez ; Gabriel Jaime Varela Aguirre    

Público ISBD Título : Malignant peripheral nerve sheath tumor in a child Tipo de documento : documento electrónico Autores : Lina Marcela Cadavid Álvarez, ; Gabriel Jaime Varela Aguirre, Fecha de publicación : 2021 Títulos uniformes : Radiology Case Reports Idioma : Inglés (eng) Palabras clave : Child  Malignant peripheral nerve sheath tumor  Nerve sheath neoplasms  Neurofibroma  Peripheral nerve  Schwannoma Resumen : Among the diverse causes of posterior mediastinal masses, malignant peripheral nerve sheath tumors is a very rare neurogenic tumor. Imaging features tend to be variable. A 20-month-old toddler presented with a 3-month history of persistent diffuse thoracic and abdominal pain. A chest magnetic resonance imaging was taken and shown a posterior mediastinal lesion. Histopathology and immunohistochemical analysis confirmed the diagnosis of a malignant peripheral nerve sheath tumor with myxoid areas. Malignant peripheral nerve sheath tumors are an uncommon entity in the children with a poor prognosis. Magnetic resonance imaging is the preferred technique in children to limit the use of ionizing radiation and because has a higher contrast resolution; however, all suspicious tumors should be biopsied to make an appropriate diagnosis. Treatment is radical surgery with excision of the entire mass; however, there is a high incidence of local recurrence. Mención de responsabilidad : Brian Daniel Noreña-Rengifo MD, Lina Marcela Cadavid-Alvarez RR, Patricia Eugenia Gil-Serrano RR y Gabriel Jaime Varela-Aguirre PR Referencia : Radiol Case Rep. 2020 Nov 12;16(1):145-151. DOI (Digital Object Identifier) : 10.1016/j.radcr.2020.10.028 PMID : 33224401 Derechos de uso : CC BY-NC-ND En línea : https://linkinghub.elsevier.com/retrieve/pii/S1930-0433(20)30547-1 Enlace permanente : https://hospitalpablotobon.cloudbiteca.com/pmb/opac_css/index.php?lvl=notice_display&id=5750 Malignant peripheral nerve sheath tumor in a child [documento electrónico] / Lina Marcela Cadavid Álvarez, ; Gabriel Jaime Varela Aguirre,  . - 2021. Obra : Radiology Case Reports Idioma : Inglés (eng) Palabras clave : Child  Malignant peripheral nerve sheath tumor  Nerve sheath neoplasms  Neurofibroma  Peripheral nerve  Schwannoma Resumen : Among the diverse causes of posterior mediastinal masses, malignant peripheral nerve sheath tumors is a very rare neurogenic tumor. Imaging features tend to be variable. A 20-month-old toddler presented with a 3-month history of persistent diffuse thoracic and abdominal pain. A chest magnetic resonance imaging was taken and shown a posterior mediastinal lesion. Histopathology and immunohistochemical analysis confirmed the diagnosis of a malignant peripheral nerve sheath tumor with myxoid areas. Malignant peripheral nerve sheath tumors are an uncommon entity in the children with a poor prognosis. Magnetic resonance imaging is the preferred technique in children to limit the use of ionizing radiation and because has a higher contrast resolution; however, all suspicious tumors should be biopsied to make an appropriate diagnosis. Treatment is radical surgery with excision of the entire mass; however, there is a high incidence of local recurrence. Mención de responsabilidad : Brian Daniel Noreña-Rengifo MD, Lina Marcela Cadavid-Alvarez RR, Patricia Eugenia Gil-Serrano RR y Gabriel Jaime Varela-Aguirre PR Referencia : Radiol Case Rep. 2020 Nov 12;16(1):145-151. DOI (Digital Object Identifier) : 10.1016/j.radcr.2020.10.028 PMID : 33224401 Derechos de uso : CC BY-NC-ND En línea : https://linkinghub.elsevier.com/retrieve/pii/S1930-0433(20)30547-1 Enlace permanente : https://hospitalpablotobon.cloudbiteca.com/pmb/opac_css/index.php?lvl=notice_display&id=5750

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Primitive neuroectodermal tumor of the liver: a case report of a rare case in pediatrics / Lina Marcela Cadavid Álvarez ; Jorge Alberto Ochoa Gaviria ; Juan Camilo Pérez Cadavid    

Público ISBD Título : Primitive neuroectodermal tumor of the liver: a case report of a rare case in pediatrics Tipo de documento : documento electrónico Autores : Lina Marcela Cadavid Álvarez, ; Jorge Alberto Ochoa Gaviria, ; Juan Camilo Pérez Cadavid, Fecha de publicación : 2021 Títulos uniformes : Radiology Case Reports Idioma : Inglés (eng) Palabras clave : Primitive neuroectodermal tumor  Focal hepatic lesion  Ewing sarcoma Resumen : Primitive neuroectodermal tumors (PNETs) belong to the Ewing sarcoma family of tumors. These lesions are highly aggressive and are usually found in paravertebral regions, lower limbs, and thorax. However, abdominal PNETs are extremely rare, and only 3 cases of pediatric PNET of the liver have been previously reported. Most patients exhibit symptoms associated with mass effect, due to rapid tumor growth and dissemination. Therefore, an appropriate differential diagnosis is of pivotal importance in order to initiate the corresponding treatment. Here we report the case of a 4-year-old female patient who was diagnosed with PNET of the liver, and we discuss the analysis of focal liver lesions and differential diagnosis in pediatric patients. Mención de responsabilidad : Juan David Vásquez Montoya, Lina Marcela Cadavid Álvarez, Jorge Alberto Ochoa Gaviria, Juan Camilo Pérez Cadavid Referencia : Radiol Case Rep. 2021 Jun 13;16(8):2220-2225. DOI (Digital Object Identifier) : 10.1016/j.radcr.2021.05.001 PMID : 34178196 Derechos de uso : CC BY-NC-ND En línea : https://linkinghub.elsevier.com/retrieve/pii/S1930043321002909 Enlace permanente : https://hospitalpablotobon.cloudbiteca.com/pmb/opac_css/index.php?lvl=notice_display&id=5803 Primitive neuroectodermal tumor of the liver: a case report of a rare case in pediatrics [documento electrónico] / Lina Marcela Cadavid Álvarez, ; Jorge Alberto Ochoa Gaviria, ; Juan Camilo Pérez Cadavid,  . - 2021. Obra : Radiology Case Reports Idioma : Inglés (eng) Palabras clave : Primitive neuroectodermal tumor  Focal hepatic lesion  Ewing sarcoma Resumen : Primitive neuroectodermal tumors (PNETs) belong to the Ewing sarcoma family of tumors. These lesions are highly aggressive and are usually found in paravertebral regions, lower limbs, and thorax. However, abdominal PNETs are extremely rare, and only 3 cases of pediatric PNET of the liver have been previously reported. Most patients exhibit symptoms associated with mass effect, due to rapid tumor growth and dissemination. Therefore, an appropriate differential diagnosis is of pivotal importance in order to initiate the corresponding treatment. Here we report the case of a 4-year-old female patient who was diagnosed with PNET of the liver, and we discuss the analysis of focal liver lesions and differential diagnosis in pediatric patients. Mención de responsabilidad : Juan David Vásquez Montoya, Lina Marcela Cadavid Álvarez, Jorge Alberto Ochoa Gaviria, Juan Camilo Pérez Cadavid Referencia : Radiol Case Rep. 2021 Jun 13;16(8):2220-2225. DOI (Digital Object Identifier) : 10.1016/j.radcr.2021.05.001 PMID : 34178196 Derechos de uso : CC BY-NC-ND En línea : https://linkinghub.elsevier.com/retrieve/pii/S1930043321002909 Enlace permanente : https://hospitalpablotobon.cloudbiteca.com/pmb/opac_css/index.php?lvl=notice_display&id=5803

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Pulmonary imaging in coronavirus disease 2019 (COVID-19): a series of 140 Latin American children / Lina Marcela Cadavid Álvarez  

Público ISBD Título : Pulmonary imaging in coronavirus disease 2019 (COVID-19): a series of 140 Latin American children Tipo de documento : documento electrónico Autores : Lina Marcela Cadavid Álvarez, Fecha de publicación : 2021 Títulos uniformes : Pediatric Radiology Idioma : Inglés (eng) Palabras clave : Chest  Children  Computed tomography  Coronavirus disease 2019  Lungs  Pulmonary  Radiography  Severe acute respiratory syndrome coronavirus 2 Resumen : Background: The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which resulted in the worldwide coronavirus disease 2019 (COVID-19) pandemic of 2020, has particularly affected Latin America. Objective: The purpose of the study was to analyze the imaging findings of pulmonary COVID-19 in a large pediatric series. Materials and methods: Children with SARS-CoV-2 infection confirmed by either quantitative reverse transcription-polymerase chain reaction from nasopharyngeal swabs or presence of circulating immunoglobulin M (IgM) antibodies and who underwent chest radiograph or CT or both were included in this retrospective multicenter study. Three pediatric radiologists independently reviewed radiographs and CTs to identify the presence, localization, distribution and extension of pulmonary lesions. Results: We included 140 children (71 female; median age 6.3 years, interquartile range 1.6–12.1 years) in the study. Peribronchial thickening (93%), ground-glass opacities (79%) and vascular engorgement (63%) were the most frequent findings on 131 radiographs. Ground-glass opacities (91%), vascular engorgement (84%) and peribronchial thickening (72%) were the most frequent findings on 32 CTs. Peribronchial thickening (100%), ground-glass opacities (83%) and pulmonary vascular engorgement (79%) were common radiograph findings in asymptomatic children (n=25). Ground-glass opacity and consolidation were significantly higher in children who needed intensive care admission or died (92% and 48%), in contrast with children with a favorable outcome (71% and 24%, respectively; P Mención de responsabilidad : Carlos F. Ugas-Charcape, María Elena Ucar, Judith Almanza-Aranda, Emiliana Rizo-Patrón, Claudia Lazarte-Rantes, Pablo Caro-Domínguez, Lina Cadavid, Lizbet Pérez-Marrero, Tatiana Fazecas, Lucía Gomez, Mariana Sánchez Curiel, Walter Pacheco, Ana Rizzi, Andrés García-Bayce, Efigenia Bendeck, Mario Montaño, Pedro Daltro & José D. Arce-V Referencia : Pediatr Radiol. 2021 Aug;51(9):1597-1607. DOI (Digital Object Identifier) : 10.1007/s00247-021-05055-2 PMID : 33791841 En línea : https://link.springer.com/article/10.1007%2Fs00247-021-05055-2 Enlace permanente : https://hospitalpablotobon.cloudbiteca.com/pmb/opac_css/index.php?lvl=notice_display&id=5856 Pulmonary imaging in coronavirus disease 2019 (COVID-19): a series of 140 Latin American children [documento electrónico] / Lina Marcela Cadavid Álvarez,  . - 2021. Obra : Pediatric Radiology Idioma : Inglés (eng) Palabras clave : Chest  Children  Computed tomography  Coronavirus disease 2019  Lungs  Pulmonary  Radiography  Severe acute respiratory syndrome coronavirus 2 Resumen : Background: The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which resulted in the worldwide coronavirus disease 2019 (COVID-19) pandemic of 2020, has particularly affected Latin America. Objective: The purpose of the study was to analyze the imaging findings of pulmonary COVID-19 in a large pediatric series. Materials and methods: Children with SARS-CoV-2 infection confirmed by either quantitative reverse transcription-polymerase chain reaction from nasopharyngeal swabs or presence of circulating immunoglobulin M (IgM) antibodies and who underwent chest radiograph or CT or both were included in this retrospective multicenter study. Three pediatric radiologists independently reviewed radiographs and CTs to identify the presence, localization, distribution and extension of pulmonary lesions. Results: We included 140 children (71 female; median age 6.3 years, interquartile range 1.6–12.1 years) in the study. Peribronchial thickening (93%), ground-glass opacities (79%) and vascular engorgement (63%) were the most frequent findings on 131 radiographs. Ground-glass opacities (91%), vascular engorgement (84%) and peribronchial thickening (72%) were the most frequent findings on 32 CTs. Peribronchial thickening (100%), ground-glass opacities (83%) and pulmonary vascular engorgement (79%) were common radiograph findings in asymptomatic children (n=25). Ground-glass opacity and consolidation were significantly higher in children who needed intensive care admission or died (92% and 48%), in contrast with children with a favorable outcome (71% and 24%, respectively; P Mención de responsabilidad : Carlos F. Ugas-Charcape, María Elena Ucar, Judith Almanza-Aranda, Emiliana Rizo-Patrón, Claudia Lazarte-Rantes, Pablo Caro-Domínguez, Lina Cadavid, Lizbet Pérez-Marrero, Tatiana Fazecas, Lucía Gomez, Mariana Sánchez Curiel, Walter Pacheco, Ana Rizzi, Andrés García-Bayce, Efigenia Bendeck, Mario Montaño, Pedro Daltro & José D. Arce-V Referencia : Pediatr Radiol. 2021 Aug;51(9):1597-1607. DOI (Digital Object Identifier) : 10.1007/s00247-021-05055-2 PMID : 33791841 En línea : https://link.springer.com/article/10.1007%2Fs00247-021-05055-2 Enlace permanente : https://hospitalpablotobon.cloudbiteca.com/pmb/opac_css/index.php?lvl=notice_display&id=5856

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Niveles de referencia de dosis de radiación para la toma de imágenes en pediatría / Lina Marcela Cadavid Álvarez ; Jairo Fernando Poveda Bolaños  

Público ISBD Título : Niveles de referencia de dosis de radiación para la toma de imágenes en pediatría Otros títulos : Reference Levels of Radiation Dose for Imaging in Pediatrics Tipo de documento : documento electrónico Autores : Lina Marcela Cadavid Álvarez, ; Jairo Fernando Poveda Bolaños, Fecha de publicación : 2020 Títulos uniformes : Revista Colombiana de Radiología Idioma : Español (spa) Palabras clave : Tomografía computarizada multidetector  Protección radiológica  Dosis de radiación Resumen : Introducción: El uso de dosis adecuadas de radiación en pacientes pediátricos es un deber de los centros de diagnóstico médico debido a las características y retos que implica esta población. Por lo anterior, se han establecido unos niveles internacionales de referencia de dosis (DRL, del inglés dose reference level) para optimizar y comparar los protocolos de cada institución. En Colombia no se cuenta con estudios al respecto. Objetivo: Mostrar los DRL utilizados en un hospital universitario de alta complejidad en las modalidades de tomografía computarizada (TC), radiografía y fluoroscopia y compararlos con los estándares internacionales. Metodología: Estudio descriptivo retrospectivo realizado entre 2018 y 2019. Se analizaron datos de producto dosis longitud (DLP) para TC de cráneo, tórax, abdomen y TC de tórax de alta resolución (TACAR); y producto dosis área (DAP) para radiografía de tórax, abdomen, huesos y fluoroscopia por grupos etarios. Resultados: Se obtuvieron los datos de 780 pacientes: 360 radiografías, 100 de fluoroscopia y 320 tomografías. Se encontró que los niveles de referencia de dosis de radiación usados en el hospital son bajos, comparados con guías europeas de 2018 de niveles de referencia. Se describen DRL para cada estudio y grupo etario. Conclusión: Se demostró que en el hospital donde hizo el estudio los niveles de referencia de radiación en la población pediátrica son bajos. El presente trabajo puede servir como referente nacional. Mención de responsabilidad : Lina Marcela Cadavid Álvarez, Jairo Fernando Poveda Bolaños, María Isabel Palacio Montoya, John Fernando González Londoño, María Fernanda Saldarriaga Arango Referencia : Rev. colomb. radiol ; 31(2): 5328-5334, jun. 2020. En línea : http://contenido.acronline.org/Publicaciones/RCR/RCR31-2/RCR%2031_2-04-Niveles%2 [...] Enlace permanente : https://hospitalpablotobon.cloudbiteca.com/pmb/opac_css/index.php?lvl=notice_display&id=5731 Niveles de referencia de dosis de radiación para la toma de imágenes en pediatría = Reference Levels of Radiation Dose for Imaging in Pediatrics [documento electrónico] / Lina Marcela Cadavid Álvarez, ; Jairo Fernando Poveda Bolaños,  . - 2020. Obra : Revista Colombiana de Radiología Idioma : Español (spa) Palabras clave : Tomografía computarizada multidetector  Protección radiológica  Dosis de radiación Resumen : Introducción: El uso de dosis adecuadas de radiación en pacientes pediátricos es un deber de los centros de diagnóstico médico debido a las características y retos que implica esta población. Por lo anterior, se han establecido unos niveles internacionales de referencia de dosis (DRL, del inglés dose reference level) para optimizar y comparar los protocolos de cada institución. En Colombia no se cuenta con estudios al respecto. Objetivo: Mostrar los DRL utilizados en un hospital universitario de alta complejidad en las modalidades de tomografía computarizada (TC), radiografía y fluoroscopia y compararlos con los estándares internacionales. Metodología: Estudio descriptivo retrospectivo realizado entre 2018 y 2019. Se analizaron datos de producto dosis longitud (DLP) para TC de cráneo, tórax, abdomen y TC de tórax de alta resolución (TACAR); y producto dosis área (DAP) para radiografía de tórax, abdomen, huesos y fluoroscopia por grupos etarios. Resultados: Se obtuvieron los datos de 780 pacientes: 360 radiografías, 100 de fluoroscopia y 320 tomografías. Se encontró que los niveles de referencia de dosis de radiación usados en el hospital son bajos, comparados con guías europeas de 2018 de niveles de referencia. Se describen DRL para cada estudio y grupo etario. Conclusión: Se demostró que en el hospital donde hizo el estudio los niveles de referencia de radiación en la población pediátrica son bajos. El presente trabajo puede servir como referente nacional. Mención de responsabilidad : Lina Marcela Cadavid Álvarez, Jairo Fernando Poveda Bolaños, María Isabel Palacio Montoya, John Fernando González Londoño, María Fernanda Saldarriaga Arango Referencia : Rev. colomb. radiol ; 31(2): 5328-5334, jun. 2020. En línea : http://contenido.acronline.org/Publicaciones/RCR/RCR31-2/RCR%2031_2-04-Niveles%2 [...] Enlace permanente : https://hospitalpablotobon.cloudbiteca.com/pmb/opac_css/index.php?lvl=notice_display&id=5731

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Primary osseous Burkitt lymphoma with nodal and intracardiac metastases in a child / Lina Marcela Cadavid Álvarez ; Mirna Rocío Yabur Espitia    

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Pielonefritis Xantogranulomatosa en un paciente pediátrico / Mirian Natalia Herrera Toro ; Lina Maria Serna Higuita ; John Fredy Nieto Ríos ; Lina Marcela Cadavid Álvarez ; Luis Germán Pulgarín Ricardo ; Beatriz Elena Lopera Marín ; Francisco Javier Mejía Sarasti

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