A Case of Primary Gastric Actinomy Cosis

Akira Fukunaga¹⁾²⁾, Yasuhiro Suzuki¹⁾, Motoo Takahashi¹⁾, Kazuaki Hazama¹⁾²⁾, Naofumi Yoshida¹⁾²⁾, Toshiaki Kawakami¹⁾, Satoshi Ko-ndoh²⁾, Hiroyuki Katoh²⁾and Miri Fujita³⁾

¹⁾Department of Surgery, Sinnitetu Muroran General Hospital ²⁾Second Department of Surgery, Hokkaido University School of Medicine ³⁾Second Department of Pathology, Hokkaido University School of Medicine

A case of primary gastric actinomycosis in which the preoperative diagnosis was difficult is reported. A 62-year-old woman who complained of nausea, epigastric pain, and weight loss was admitted to our hospital. Abdominal ultra-sonography, computed tomography, MRI, and gastroduodenoscopy revealed a primary gastric tumor that was suspected of being malignant. Distal gastrectomy with transverse colectomy was performed. Histopathological studies of the resected material revealed characteristic sulfur granules in the indurated mass, and a diagnosis of gastric actinomycosis was made. No evidence of malignancy was found. Piostoperative antibiotic therapy was performed for only 1 week, and there has been no evidence of recurrence. In recent years, this disease are relatively rare, and it is not always easy to diagnose this disease. But it is important to be taken into consideration in the differential diagnosis of the abdominal mass.

Key words
gastric actinomycosis, peritonea abcsess

Reprint requests
Akira Fukunaga Department of Surgery, Hakodate Medical Association Hospital 2-10-10 Tomioka-cho, Hakodate, 041-8522 JAPAN

Accepted
February 28, 2001

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