Endoscopic resection of gastric calcifying fibrous tumor: An incidental finding

Abstract

Calcifying fibrous tumor (CFT) is benign mesenchymal lesion. CFTs of the GI tract are quite rare with less than 60 cases of gastric CFTs reported in the English literature. In a healthy 49 old female, routine Endoscopic ultrasonography (EUS) revealed an internally isoechoic, homogeneous 12mm lesion mainly within the submucosa in the distal body of stomach with no significant past history. An endoscopic submucosal dissection (ESD) was done to rule out malignancy. The histopathological examination showed a hypocellular lesion with few spindle cells interspersed in a hyalinized, collagenous matrix with occasional lymphoplasmacytic cells. Foci of psammomatous, dystrophic calcification were noted. Immunohistochemical examination revealed tumor cells positive for vimentin and negative for CD34, CD117, DOG1, desmin, SMA and S100. Based on histopathological and IHC findings, a diagnosis of gastric calcifying fibrous tumour was made. Only a handful of CFT cases resected by endoscopic submucosal dissection has been reported in the literature. So herein we report a rare case of endoscopically resected gastric calcifying fibrous tumor.