腸重積症で初発したS状結腸癌の2例

Abstract

Two-thirds of adult patients with intussusception are reported to have enterointestinal tumors. We experienced two cases of sigmoid colon cancer. Two female patients, aged 54 and 32, presented with severe lower abdominal pain and melena. The rectal examination revealed the presence of a hen-egg-sized tumor with bloody discharge in both patients. To determine the cause of persistent lower abdominal pain, we performed computed tomography(CT) scans, which showed sigmoid-rectal intussusception. Barium studies and colonoscopy disclosed that intussusception was caused by sigmoid cancer of Borrmann typeⅠ. These cases suggest that CT scan may be useful for rapid diagnosis of sigmoid-rectal intussusception due to tumors in patients presenting with severe lower abdomiminal pain.