title: Gastric actinomycosis.
abstract: A case of actinomycosis of the stomach in a 61-year-old woman is reported. The patient presented to the hospital with a history of epigastric pain, fatigue, poor appetite, constipation and mild fever of 20 days' duration. On physical examination, a tender mass was felt at the epigastrium. Computed tomography (CT) showed a heterogeneously enhanced mass at the posterior wall of the stomach. Upper gastrointestinal series revealed a submucosal mass at the gastric antrum. A malignant tumor was suspected and surgery was recommended. A 5 x 4 x 2 cm mass was found at the posterior wall of the distal gastric antrum. A Billroth II subtotal gastrectomy was performed. Pathologic examination revealed suppuration and sulfur granules in the indurated mass. The patient was subsequently treated with intravenous penicillin-V for 12 days and then with oral penicillin-G for 4 months. She remained well at her last follow-up appointment. Although the initial radiologic findings were nonspecific, CT was of importance in delineating the location and evaluating the extent of the lesion.
authors.affiliation: Department of Diagnostic Radiology, Chang Gung Memorial Hospital, Taipei, Taiwan, ROC.
authors.forename: C M
authors.initials: CM
authors.lastname: Lee
authors.forename: S H
authors.initials: SH
authors.lastname: Ng
authors.forename: Y L
authors.initials: YL
authors.lastname: Wan
authors.forename: C H
authors.initials: CH
authors.lastname: Tsai
mesh_terms: D000196:Actinomycosis / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008875:Middle Aged; D011706:Pyloric Antrum / Q000000981:diagnostic imaging; D013272:Stomach Diseases / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed