Calcifying Fibrous Tumor of the Gastric Wall

Abstract

A calcifying fibrous tumor (CFT) is a rare benign fibrous tumor. It is characterized by abundant hyalinized collagen and psammomatous calcification. CFT has sometimes required differentiation from gastrointestinal stromal tumor (GIST) because it may occur in the stomach. A 22-year-old woman underwent upper gastrointestinal endoscopy due to the presence of epigastric pain. A 15-mm elevated lesion was seen at the gastric fundus on upper gastrointestinal endoscopy. A mucosal cutting biopsy failed to provide a definite diagnosis ; therefore, a single-incision laparoscopic partial gastrectomy was conducted for the purpose of diagnosis and treatment. The pathological results showed chronic inflammatory cell infiltration with collagenous growth, psammomatous calcification, and lymphatic follicle formation. Based on the immunostaining results, CFT was diagnosed.

The patient's postoperative course was uneventful, and the patient was discharged on the 6th postoperative day. In this report, a very rare case of primary gastric CFT is presented along with a brief discussion of the literature.