Persona:
Parra-Medina, Rafael

Imagen de perfil

Foto de perfil

Código QR

QR

Proyectos de investigación

Unidades organizativas

Puesto de trabajo

Apellidos

Parra-Medina

Nombre de pila

Rafael

Dirección de correo electrónico

ORCID

0000-0002-8428-5837
Google Scholar

WBFO-JoAAAAJ

Fecha de nacimiento

Grupo de investigación

Área de investigación

Línea de investigación

Tópicos de investigación

Cargo

Filtros

2015 - 20193
Restablecer filtros

Ajustes

Tiene archivos: true × Tema: Adenocarcinoma ×

Resultados de la búsqueda

Mostrando 1 - 3 de 3
  • Miniatura
    PublicaciónAcceso abierto
    Neuroendocrine neoplasms of gastrointestinal tract and secondary primary synchronous tumors: A systematic review of case reports. Casualty or causality?
    (San Francisco CA., 2019-05) Moreno Lucero, Paula; Jimenez Moreno, Julián; Parra Morales, Alexandra María; Romero Rojas, Alfredo; Parra-Medina, Rafael
    Neuroendocrine neoplasms (NENs) can arise in most of the epithelial organs of the body and are not a rare condition in the gastrointestinal tract (GIT). The presence of NENs in GIT associated with other secondary primary malignancies (SPM) has been considered an exotic event. This study aims to describe the case reports of NENs accompanied by synchronous primary tumors.
  • Miniatura
    PublicaciónAcceso abierto
    Colonic adenosquamous carcinoma and mucinous adenocarcinoma with microsatellite instability
    (College of Pathologists, 2018) López Correa, Patricia; Gutiérrez, Víctor; Polo, José Fernando; Parra-Medina, Rafael
    A 43-year-old man presented with two-month history of fatigue, weakness, paleness, rectal bleeding, sweating, and weight loss of 10 kg in the past one month. A complete blood count revealed anaemia. The patient underwent a right hemicolectomy. The microscopic examination revealed an adenosquamous carcinoma associated with a mucinous adenocarcinoma in a patient with microsatellite instability due to loss of MLH1 and PMS2 expression and retention of MSH2 and MSH6 expression in both the squamous and glandular components. We also observed an atypical immunohistochemical phenotype in the adenocarcinoma component showing CK7 expression and reduced CK20 and CDX2 expression
  • Miniatura
    PublicaciónAcceso abierto
    Carcinosarcoma with choriocarcinomatous and osteosarcomatous differentiation in a patient with juvenile polyposis syndrome
    (Publicaciones SAGE, 2015-09-01) López Correa, Patricia; Jiménez Moreno, Julián; Moreno Lucero, Paula; Yaspe, Edgardo; Polo Nieto, José Fernando; Parra-Medina, Rafael
    Juvenile polyposis syndrome (JPS) is an infrequent autosomal dominant hereditary predisposition to the occurrence of hamartomatous polyps in the colon and rectum. We describe the case of a 12-year-old boy with JPS associated with an abdominal tumor. Histological sections of the abdominal tumor showed components of adenocarcinoma, osteosarcoma, and choriocarcinoma. Immunohistochemistry was AE1/AE3, CK7, HCG and SALL4 positive. Juvenile polyposis syndrome patients are at increased risk of colorectal adenocarcinoma. However, we present a case of an adenocarcinoma associated with other unusual components. This association has not been reported before.