Collision Tumor of the Stomach: A Case of an Adenocarcinoma and a Gastrointestinal Stromal Tumor
نویسندگان
چکیده
A collision tumor of the stomach is a rare event. We report the case of a collision tumor of the stomach consisting of an adenocarcinoma and a gastrointestinal stromal tumor (GIST). This is, to our knowledge, the second report in the literature of such a case. A 71-year-old man with abdominal discomfort underwent an esophagogastroduodenoscopy which revealed a tumor of the oesophagogastric junction. A total gastrectomy was performed. Histologic examination showed a mixed tumor consisting of a primary adenocarcinoma and multiple nodules of GIST. The adenocarcinoma showed both diffuse and intestinal growth, angio-invasion and metastasis to lymph nodes. The GIST tumor cells were strongly immunoreactive to CD117 and CD34. Based on mitotic index, size and cytonuclear details, the biological behavior of this GIST tumor was supposed to be benign. This case reports the rare finding of a collision tumor consisting of an adenocarcinoma and a GIST with an unknown etiology.
منابع مشابه
Gastric Calcifying Fibrous Tumor Resembling Gastrointestinal Stromal Tumor: A Case Report
Calcifying fibrous tumor (CFT) is a rare mesenchymal tumor, affecting children and young adults with a predilection for the soft tissue and the abdominal cavity. CFT of the tubular gastrointestinal tract is very rare with less than 20 cases of gastric CFTs reported in English literature. This benign hypocellular fibrosclerotic calcifying lesion can resemble other spindle cell tumors particularl...
متن کاملA rare collision tumor of gastrointestinal stromal tumor of the stomach and pancreatic ductal adenocarcinoma
Collision tumors involving GIST are very rare. Herein, we report a collision tumor consisting of gastric gastrointestinal stromal tumor (GIST) and pancreatic ductal adenocarcinoma. The patient was a 76-year-old Chinese male, presenting with abdominal distension, haematemesis and melena. Both the CT scan images and the gross appearance demonstrated special features indicating the possibility of ...
متن کاملSynchronous Gastrointestinal Stromal Tumor and Axillary Deep Fibromatosis: A Rare Association
Gastrointestinal Stromal Tumor (GIST) is the most common mesenchymal tumor of the gastrointestinal tract and most commonly affects the stomach, while fibromatosis is a rare locally aggressive fibrous tissue neoplasm. There have been reports of GIST and fibromatosis occurring in same individual and in most of them fibromatosis occurs within the abdomen. In 75% of patients fibromatosis occurs aft...
متن کاملSimultaneous Gastric Adenocarcinoma and Gastrointestinal Stromal Tumor of the Stomach: A Case Report
Simultaneous a collision tumor of stomach consisting of adenocarcinoma and Gastrointestinal Stromal Tumor (GIST) is very rare based on our knowledge. This coexistence has rarely been reported in literatures. We report a case of 64-year-old woman who has diagnosed with prepyloric poorly-differentiated diffuse signet-ring cell type adenocarcinoma and has undergone an elective D2 total gastrectomy...
متن کامل5-Year Survival in Gastric Adenocarcinoma with Epithelial and Stromal Versican Expression
Background & Objective: Gastric cancer is the second most frequent cause of cancer death worldwide, despite differences in incidence around the world. The majority of gastric cancer cases concern gastric adenocarcinoma, which has a fairly high 5-year survival rate when coupled with early-stage diagnosis. Versican, a member of the aggregating chondroitin sulfate proteoglycans fa...
متن کامل