Primary gastric small cell carcinoma (GSCC) is an extremely rare type of small cell carcinoma. Its aggressive nature with early widespread metastasis and late detection gives it a poor prognosis with overall survival of <12 months. GSCC is a type of neuroendocrine tumor, and because of its histopathological similarity to small cell lung carcinoma (SCLC), treatment regimen of GSCC includes the same chemotherapy agents as SCLC. We report a case of a 57-year-old man who presented with signs of partial gastrointestinal obstruction and was found to have a primary stage IV GSCC with metastasis to the liver.
Keywords: extrapulmonary small cell carcinoma; gastric small cell carcinoma; gastrointestinal cancer; neuroendocrine tumor; small cell carcinoma.
© 2024 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of The American College of Gastroenterology.