title: Sarcomatoid carcinoma of the stomach: A case report and literature review.
abstract: Sarcomatoid carcinoma of the stomach is a rare type of malignant tumor, characterized by distinct cellular morphology. This type of tumor is even more rare in giant size. The present study reports a case of giant sarcomatoid carcinoma, which developed in the distal stomach. A 49-year-old male underwent medical investigation for gastrointestinal hemorrhage. Endoscopic examination, computed tomography (CT) and positron emission tomography-CT scan identified a giant neoplasm, which involved the gastric antrum and body, gallbladder and hepatic flexure of the colon. Surgery was performed to excise the tumor, which was ~14×13×8 cm in size. A diagnosis of sarcomatoid carcinoma was made since the tumor was positive for epithelial markers, even within the mesenchymal elements. To the best of our knowledge, only 5 cases of sarcomatoid carcinoma of the stomach have been previously reported, and a tumor that has been able to be resected despite such a large size has never been reported.
authors.affiliation: Department of Gastrointestinal Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P.R. China.
authors.forename: Chun-Chao
authors.initials: CC
authors.lastname: Zhu
authors.affiliation: Department of Gastrointestinal Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P.R. China.
authors.forename: Mao-Ran
authors.initials: MR
authors.lastname: Li
authors.affiliation: Department of Gastrointestinal Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P.R. China.
authors.forename: Tian-Long
authors.initials: TL
authors.lastname: Lin
authors.affiliation: Department of Gastrointestinal Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P.R. China.
authors.forename: Gang
authors.initials: G
authors.lastname: Zhao
keywords: immunohistochemistry; sarcomatoid carcinoma; stomach