PMID: 32156879Mar 12, 2020Paper

A Case of Laparoscopic Gastric Local Resection for Dedifferentiated Gastric Liposarcoma

Gan to kagaku ryoho. Cancer & chemotherapy
Reishi ToshiyamaTakahiko Tanigawa

Abstract

A 73 year-old-woman visited our emergency department with a sudden stomach ache. A 7 cm tumor was found on the greater curvature side of the stomach by contrast-enhanced CT, and showed mosaic pattern when visualized with a contrast agent. An esophagogastroduodenoscopy showed normal mucosal gastric surface with compression findings by the gastric submucosal tumor, and therefore she was admitted to our department for surgery. Abdominal ultrasound revealed an uneven gastric submucosal tumor containing cystic components with a clear border, and gastric GIST was suspected due to its appearance, and therefore, laparoscopic gastric local resection was performed. The gastric tumor was located on the dorsal side of the greater curvature and adhered highly to the retroperitoneum and spleen. The omental incision was conducted first, and the adhesion around the tumor was carefully detached, following which wedge resection was performed using Endo-GIA®at the base of the tumor. The pathological findings of the resected specimens were mainly spindle-shaped tumor cells rich in polymorphism with a high degree of necrosis, and did not seem to be conclusively GIST; as such, various immunological tests were performed.c -kit(-), DOG-1(-), S-100 p(-...Continue Reading

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