title: Solitary gastric melanotic schwannoma: sonographic findings.
abstract: Solitary gastric schwannoma is rare, and solitary melanotic schwannoma is even rarer, posing a dilemma in diagnosis and treatment. We report the case of a 69-year-old woman with gastric melanotic schwannoma who presented with nausea, vomiting, and abdominal pain. Abdominal sonographic examination revealed a 5-cm hypoechoic mass in the epigastric area that was confirmed to be a gastric submucosal tumor on endoscopic examination. The diagnosis of melanotic schwannoma was confirmed via sonographically guided percutaneous core biopsy. The tumor was resected, and no recurrence has occurred in a 3-year follow-up.
authors.affiliation: Department of Gastroenterology, Changhua Christian Medical Center, Changhua, Taiwan.
authors.forename: Yang-Yuan
authors.initials: YY
authors.lastname: Chen
authors.forename: Hsu-Heng
authors.initials: HH
authors.lastname: Yen
authors.forename: Maw-Soan
authors.initials: MS
authors.lastname: Soon
mesh_terms: D000368:Aged; D001706:Biopsy; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D009442:Neurilemmoma / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D013274:Stomach Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D018084:Ultrasonography, Interventional