S状結腸癌を先進部とする成人腸重積症の1例

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  • A CASE OF INTUSSUSCEPTION CAUSED BY CANCER OF THE SIGMOID COLON IN AN ADULT

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A 53-year-old woman complaining of anal bleeding at defication pointed out having a hard tumor by a digital examination at elsewhere was referred to the hospital with a suspicion of rectal cancer. When she was first seen at the hospital, no tumor was palpable by a digital examination, but a hard mass was palpable at admission, indicating that the tumor changed its location. Pelvic CT scan disclosed the edematous rectum presenting polyptychial structure and identified the tumor in its lumen. Colonofiberscopy visualized the tumor 6 cm from the anal verge. The patient was operated on with a diagnosis of advanced rectal carcinoma with intussusception. At laparotomy, we saw a sigmoid colon-rectum intussusception caused by cancer of the sigmoid colon. After the intussusception was reduced, the sigmoid colon was excised.<br>In this country only 55 adult cases of intussusception caused by colorectal cancer have been reported since 1987. We also report an analysis of these cases to clarify the clinical features.

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