n. the region of the large intestine around the junction of the sigmoid colon and the rectum.
n. a rare manifestation of chronic or partially treated amoebic *dysentery leading to the development of a nonmalignant inflammatory mass in the bowel. It can occur in the caecum, appendix, and *rectosigmoid area in descending order of frequency. Amoebomas can cause symptoms of *intestinal obstruction, weight loss, and low-grade fever. Colonic amoeboma with multiple amoebic liver abscesses can masquerade as colorectal carcinoma and liver metastases; imaging with ultrasound and CT scan is used to differentiate between these.... amoeboma
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