Japanese Journal of Clinical Oncology, Vol 27, Issue 2 111-114, Copyright © 1997 by Foundation for Promotion of Cancer Research
T Yokoyama, H Kondo, T Yokota, Y Tokue, D Saito, Y Shimada and K Sugihara
Diarrhea is a common complication of cancer chemotherapy, while bloody
stool is rare. Pseudomembranous colitis has been reported as causing bloody
diarrhea after chemotherapy. In this report, we describe nine consecutive
patients who presented frank bloody stools within one month after cancer
chemotherapy. Patients with a history of pelvic irradiation or with a
previously identified colorectal tumor were excluded. Among nine patients,
bleeding from tumor undetected before chemotherapy was seen in three,
pseudomembranous colitis in four, ischemic colitis in one and
methicillin-resistant Staphylococcus aureus enterocolitis in one. Of the
three tumors, one was an adenomatous polyp and the other two were
metastatic tumors. Two of the four patients with pseudomembranous colitis
had not received antibiotics before the onset of colitis. Causes of bloody
stools after chemotherapy were various and colonoscopy played an important
role in diagnosis and prompt therapy.
ORIGINAL ARTICLE
Colonoscopy for frank bloody stools associated with cancer chemotherapy
Department of Endoscopy, National Cancer Center Hospital, Tokyo, Japan.
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