5 research outputs found

    Linfoma Hodgkin Clásico en el departamento de anatomía patológica del Hospital Nacional Edgardo Rebagliati Martins durante los años 2015 a 2019.: Classical Hodgkin Lymphoma in pathological anatomy department at Edgardo Rebagliati Martins National Hospital during 2015 to 2019

    Get PDF
    Introduction: Hodgkin lymphomas are B-cell lymphoid neoplasms histologically characterized by a mixed inflammatory cellular component and few Hodgkin/Reed-Sternberg neoplastic cells. Classical Hodgkin Lymphoma (CHL) represents 10% of all lymphoma cases and 85% of all Hodgkin Lymphomas. According to the current World Health Organization classification, CHL is divided into 4 types: Nodular Sclerosing (NS), Mixed Cellularity (MC), Lymphocyte-Rich (LR), and Lymphocyte-Depleted (LD). Objetive: We reviewed all cases of Classical Hodgkin Lymphoma in the Pathological Anatomy Department at Edgardo Rebagliati Martins National Hospital during 2015 to 2019, in order to determine the most frequent type, the incidence according to age and gender, phenotypical characteristics and relation to Epstein Barr Virus (EBV). Materials and Methods:  We performed a retrospective descriptive case study of Classical Hodgkin Lymphoma and its 4 clinical-pathological types in the Pathological Anatomy Department at Edgardo Rebagliati Martins National Hospital during 2015 to 2019. 72 patients were identified with Classical Hodgkin Lymphoma diagnosis, of which only 64 were selected for the study. The exclusion criteria were the absence of confirmatory immunohistochemical tests and relapse cases. Results: The most frequent type observed was Nodular Sclerosing with 34 cases (53.12%) and the least frequent type was Lymphocyte-Rich with 2 cases (3.12%). Likewise, a predominance in the male gender was observed, with 42 cases, 20 of which were Nodular Sclerosing and 14 not classified, as the most frequent types, and a greater incidence among those 41 to 50 years of age, without detection of the bimodal peak referenced in international literature. The most frequent immunohistochemical profile of Hodgkin/ Reed- Sternberg was CD15 and CD30 positive, with CD45 negative. EBV was present in 36% of cases and is more frequent in the Mixed Cellularity and Lymphocyte-Depleted types. Conclusions: Classical Hodgkin Lymphoma is a group of lymphoid neoplasms with clinical, histological, and phenotypically defined characteristics. It is more frequent in men between 41 and 50 years of age. A complete clinical information and a good biopsy, preferably excisional, is required for an adequate diagnosis. The Nodular Sclerosing type is the most frequent and the Lymphocyte-Rich is the least frequent type. Hodgkin/ Reed- Sternberg cells are usually CD-15 and CD-30 positive and CD-45 negative. The Pax-5 mild positivity allows it to be differentiated from B-cell Non-Hodgkin Lymphomas. EBV is most frequent in Mixed Cellularity and Lymphocyte-Depleted types.Introducción: Los Linfomas Hodgkin son neoplasias linfoides de células B, caracterizadas histológicamente por un contexto celular inflamatorio mixto mayoritario y escasas células neoplásicas de Hodgkin/ Reed- Sternberg. El Linfoma Hodgkin Clásico (LHC) representa el 10% de todos los casos de linfoma y el 85% de todos los Linfomas Hodgkin.  De acuerdo con la vigente clasificación de la Organización Mundial de la Salud, el LHC se divide en 4 variantes: Esclerosis Nodular (EN), Celularidad Mixta (CM), Rico en Linfocitos (RL) y Depleción Linfocítica (DL). Objetivo: En este estudio revisamos todos los casos de Linfoma Hodgkin Clásico en el Departamento de Anatomía Patológica del Hospital Nacional Edgardo Rebagliati Martins durante los años 2015 a 2019, para determinar la variante más frecuente, la incidencia en cuanto a edad y sexo, características fenotípicas y relación con el Epstein Barr Virus (EBV). Materiales y Métodos: Se realizó un estudio descriptivo retrospectivo de la casuística de Linfoma Hodgkin Clásico en sus 4 variantes clínico - patológicas en el Departamento de Anatomía Patológica del Hospital Nacional Edgardo Rebagliati Martins durante los años 2015 a 2019. Se identificaron 72 pacientes con el diagnóstico de Linfoma Hodgkin Clásico, de los cuales únicamente se seleccionaron para el estudio 64. Los criterios de exclusión fueron la ausencia de pruebas de inmunohistoquímica confirmatoria y los casos de recidiva. Resultados: Se observó que la variante más frecuente correspondió a Esclerosis Nodular con 34 casos (53.12%) y la menos frecuente a la variante Rica en Linfocitos con 2 casos (3.12%). Así mismo se observó una predominancia en el sexo masculino con 42 casos, 20 de ellos con Esclerosis Nodular y 14 no clasificables, como las variantes más frecuentes, y una mayor incidencia entre los 41 y 50 años de edad, sin detectarse el pico bimodal referido en la literatura internacional. El perfil inmunohistoquímico más frecuente de las células Hodgkin/ Reed- Sternberg es CD15 y CD30 positivo, con CD45 negativo. El EBV estuvo presente en el 36% de los casos realizados y es más frecuente en las variedades Celularidad Mixta y Depleción Linfocítica. Conclusiones: El Linfoma Hodgkin Clásico es un grupo de neoplasias linfoides con características clínicas, histológicas y fenotípicas definidas. Es más frecuente en varones entre 41 y 50 años. Para un adecuado diagnóstico se requiere una completa información clínica y una buena biopsia, de preferencia excisional. La variante Esclerosis Nodular es la más frecuente y la Rica en Linfocitos la menos frecuente. Las células Hodgkin/ Reed- Sternberg suelen ser positivas para CD15 y CD30  y negativas para CD45. La positividad tenue del Pax-5 permite diferenciarlo de Linfomas no Hodgkin de Células B. El EBV es más frecuente en las variantes Celularidad Mixta y Depleción Linfocítica

    Small bowel arteriovenous malformation as a cause of dark gastrointestinal bleeding: Two instructional cases

    Get PDF
    Introduction: Digestive bleeding can put patients' lives at risk, even more so when the origin is not located in routine upper and lower endoscopy. The small intestine is the largest portion of the digestive tract and being a source of bleeding means a diagnostic and therapeutic medical challenge. Clinical case: We presented cases of two female patients, 53 and 60 years old, who develop digestive bleeding, locating its origin in the small bowel and undergoing surgical removal of the affected intestinal segment. The anatomopathological study finds malformed arteries and veins that communicate without an intermediate capillary bed. The diagnosis was arteriovenous malformation, a rare entity in the small bowel. Both cases are reviewed with emphasis on the histopathological criteria and their clinical correlation

    Coriocarcinoma gástrico primario: un hallazgo endoscópico infrecuente

    Get PDF
    Introduction: Primary gastric choriocarcinoma (PGC) is a rare and highly aggressive neoplasm that represents less than 0.1% of all gastric cancers. This neoplasm is often confused with gastric adenocarcinoma because it shares clinical, epidemiological and histopathological characteristics, so it is important to maintain a high suspicion of this entity. Case of report: A case of a 64-year-old woman who came to the hospital with non-specific gastrointestinal symptoms that arose anemia, fatigue and early fullness is presented. The endoscopic biopsy of the lesion revealed the presence of PGC in clinical stage IV that presented a partial response after 4 cycles of chemotherapy with the EMA/EP regimen (Etoposide 140 mg, Methotrexate 440 mg, Actinomycin D 0.5 mg/ Etoposide 220 mg, cisplatin 110 mg). Conclusion: To emphasize the poor prognosis of extragonadal choriocarcinomas in contrast to gonadal choriocarcinomas, which usually have a better prognosis.Introducción: El coriocarcinoma gástrico primario (CGP) es una neoplasia infrecuente y altamente agresiva que representa menos de 0.1% de todos los cánceres gástricos. Esta neoplasia suele ser frecuentemente confundida con adenocarcinoma gástrico debido a que comparte características clínicas, epidemiológicas e histopatológicas similares, por lo que es importante mantener una alta sospecha de esta entidad.  Reporte de caso: Se presenta un el caso de una paciente mujer de 64 años que acudió al hospital con síntomas gastrointestinales inespecíficos que incluían anemia, fatiga y llenura precoz. La biopsia endoscópica de la lesión reveló la presencia de CGP en estadio clínico IV que presentó una respuesta parcial luego de 4 ciclos de quimioterapia con el esquema EMA/EP (Etoposido 140 mg, Metotrexate 440 mg, Actinomicina D 0.5 mg/ Etoposido 220 mg, cisplatino 110 mg). Conclusión: Enfatizar el mal pronóstico de los coriocarcinomas extragonadales en contraste con los coriocarcinomas gonadales, los cuales suelen tener un mejor pronóstico

    Cystic folliculosebaceous hamartoma: an unusual histopathological entity: a case report

    Get PDF
    The skin covers our body and exhibits a complex structure that is adapted to the different body areas. The scalp skin is distinctive, and the histopathological alterations in its diseases also present distinctive features. We present the clinical case of a 28 year old female patient, with no significant medical history. She reported a nodular tumor on the left parietal region of the scalp, which had been present for 10 years and showed slow growth. The patient had no major discomfort other than an occasional discharge of scant whitish material upon applying pressure. Intralesional corticosteroids were administered but had no effect. Over the following year, the discomfort increased, leading to the decision to remove it. The anatomopathological study found dilated follicular hairy structures in the dermis filled with keratin and debris, surrounded by multiple sebaceous glands that flow there, all surrounded by a characteristic mesenchymal cells population, diagnosing a folliculosebaceous cystic hamartoma

    Malformación arteriovenosa en intestino delgado como causa de sangrado gastrointestinal oscuro: Dos casos aleccionadores: Small bowel arteriovenous malformation as a cause of dark gastrointestinal bleeding: Two instructional cases

    Get PDF
    ABSTRACT Introduction: Digestive bleeding can put patients’ lives at risk, even more so when the origin is not located in routine upper and lower endoscopy. The small intestine is the largest portion of the digestive tract and being a source of bleeding means a diagnostic and therapeutic medical challenge. Clinical case: We presented cases of two female patients, 53 and 60 years old, who develop digestive bleeding, locating its origin in the small bowel and undergoing surgical removal of the affected intestinal segment. The anatomopathological study finds malformed arteries and veins that communicate without an intermediate capillary bed. The diagnosis was arteriovenous malformation, a rare entity in the small bowel. Both cases are reviewed with emphasis on the histopathological criteria and their clinical correlation. Keywords: Arteriovenous malformation, small bowel, obscure digestive bleeding.RESUMEN Introducción: El sangrado digestivo puede poner en riesgo la vida de los pacientes, más aún cuando el origen no se ubica en las endoscopías alta y baja de rutina. El intestino delgado es la porción más extensa del tubo digestivo y ser fuente de sangrado significa un reto médico diagnóstico y terapéutico. Caso clínico: Se presenta los casos de dos pacientes de sexo femenino, de 53 y 60 años, quienes desarrollan sangrado digestivo, ubicándose su origen en intestino delgado y realizándoseles extirpación quirúrgica del segmento intestinal afectado. El estudio anatomopatológico encuentra arterias y venas malformadas que se comunican sin lecho capilar intermedio. El diagnóstico fue Malformación arteriovenosa, una entidad infrecuente en intestino delgado. Se revisa ambos casos con énfasis en los criterios histopatológicos y su correlación clínica. Palabras clave: Malformación arteriovenosa, intestino delgado, sangrado digestivo oscuro
    corecore