Endoscopic Removal of Granular Cell Tumors of Stomach: Case Report and Review of Literature

Gastric granular cell tumor: A case report and literature review

Granular cell tumors (GCTs) are neoplasms of uncertain histopathological etiology and therefore there are no universally accepted treatment strategies. GCTs are characterized by abundant eosinophilic granules. Since they are predominantly located in the skin and subcutaneous tissues, gastric GCTs are exceedingly rare. The present study documents the case of a 52-year-old man who visited the Gastroenterology Clinic of the People's Hospital of Putuo District (Zhoushan, China) due to upper abdominal fullness. Endoscopic ultrasonography revealed a well-defined hypoechoic nodule in the submucosal layer of the stomach body. The lesion was completely excised using endoscopic submucosal dissection and the patient made a full postoperative recovery. Immunohistochemistry showed positivity for S100 and CD68, with CD34 expression surrounding the tumor cells. At telephone follow-up until May 2024, the patient's fullness and discomfort were noted to be relieved. The characteristics of the CD34 expression pattern may serve as a novel basis for the pathological diagnosis of gastric GCTs. Endoscopic resection is a feasible option for gastric GCTs smaller than 2 cm.

Granular Cell Tumour in Stomach: a Case Report

Granular cell tumours are uncommon, usually benign soft tissue tumours. They are thought to be neural, arising from Schwann cells and can occur at various sites. Their occurrence in gastrointestinal tract is rare, the commonest site being oesophagus followed by large intestine. Gastric localization is unusual. A young female presented with abdominal discomfort since 3 months. Endoscopy showed a nodule in the body of stomach. Biopsy revealed features of granular cell tumour on microscopy, which was confirmed by immunohistochemical positivity for S100 and CD68. Wide excision of the tumour was performed. At the 6-month follow-up, patient was asymptomatic. The diagnosis of gastric granular cell tumour is based on endoscopic biopsy. Unless there is histological evidence of malignancy, wide local excision is an adequate surgical treatment.