Abstract
A 51-year-old man visited another hospital because of an intractable abscess of the abdominal wall at operative scar resulting from a laparotomy which was performed for panperitonitis with appendicites 21 years before. The patient did not respond to drainage and was referred to the hospital. After admission conservative treatment resulted in reported relapase of the abscess for a long-term. Biopsy showed growing lesions of no atypical spindle-shaped fibroblasts with abundant collagen and we suspected of a desmoid tumor. Abdominal CT revealed a homogenous density tumor which projected to the abdominal cavity. Laparotomy was performed under general anesthesia, and a hard tumor was found adhering to the urinary bladder. A wide local resection of the tumor with partial wall of the urinary bladder was carried out. The resected elastic hard tumor, measuring 8×5cm, showed a smooth surface, whitish and solid cut surface, and was histologically diagnosed as desmoid tumor. The desmoid tumor was noted more often on fertilizable young women, and so this case appeared interesting for consideration of probable etiology of the desmoid tumor.
