Introduction: The Mortality–Incidence Ratio complement [1 – MIR] is an indicator validated in various populations to estimate five-year cancer survival, but its validity remains unreported in Peru. This study aims to determine if the MIR correlates directly with five-year survival in patients diagnosed with the ten most common types of cancer in metropolitan Lima. Materials and methods: The Metropolitan Lima Cancer Registry (RCLM in Spanish) for 2004–2005 was used to determine the number of new cases and the number of deaths of the following cancers: breast, stomach, prostate, thyroid, lung, colon, cervical, and liver cancers, as well as non-Hodgkin’s lymphoma and leukaemia. To determine the five-year survival, the five-year vital status of cases recorded was verified in the National Registry of Identification and Civil Status (RENIEC in Spanish). A linear regression model was us...

Introducción: El complemento de la Razón Mortalidad-Incidencia [1 - RMI], ha sido sugerido como un proxy válido para hallar la supervivencia a cinco años de cáncer. Su validez aún no ha sido reportada en el Perú. El presente estudio busca establecer si esta razón guarda una correlación directa con la supervivencia de los pacientes con cáncer a cinco años en Lima Metropolitana. Materiales y Métodos: Se utilizó el Registro de Cáncer de Lima Metropolitana (RCLM) del 2004-2005 de donde se obtuvo la incidencia y mortalidad por tipo de neoplasia y la supervivencia observada. A partir de estas, se buscó correlacionar [1 - RMI] con la supervivencia observada a cinco años de diez tipos de neoplasias seleccionadas (Mama, estómago, próstata, tiroides, pulmón, colon, linfoma no Hodgkin, cuello uterino, hígado y leucemia) mediante el modelo de regresión lineal. Resultados: Consid...

Concurrence of adenocarcinoma and large-cell neuroendocrine carcinoma of the stomach is a rare condition. Here, we report a case of gastric collision tumour with large-cell neuroendocrine carcinoma and adenocarcinoma. A 71-year-old Peruvian man presented with nausea, epigastric pain, and weight loss for seven months. An Endoscopic evaluation revealed a huge ulcerative and infiltrative mass in the upper and middle third of the stomach. The patient underwent a D2 total gastrectomy. Microscopically, two separated and attached ulcerative lesions were recognised. The proximal to the cardial lesion showed neuroendocrine morphology and immunoreactivity for synaptophysin, and the other a moderated tubular adenocarcinoma Borrmann type III. Both lesions invaded serosa and lymph nodes metastases were found in 17 of 41 lymph nodes retrieved (one lymph node with neuroendocrine metastatic deposits).