. Surgery, its principles and practice . \,s \. Fig. 108.—Epithelioma of Anus. At o, macerated, otherwise normal, epithelial surface; b, slough on the surface of tumor mass; c, epithelial strands with pearls infiltrating the connective tissue (X about 25 diameters). they are usually in the superficial inguinal nodes, though the invasion of theperineal tissues may result in involvement of the pelvic nodal groups. Connective-tissue Tumors.—Sarcomata.—Primary sarcoma is veryrarely found in the rectum. Secondary invasion is not infrequent, due tometastases from the original growth in other pelvic
. Surgery, its principles and practice . \,s \. Fig. 108.—Epithelioma of Anus. At o, macerated, otherwise normal, epithelial surface; b, slough on the surface of tumor mass; c, epithelial strands with pearls infiltrating the connective tissue (X about 25 diameters). they are usually in the superficial inguinal nodes, though the invasion of theperineal tissues may result in involvement of the pelvic nodal groups. Connective-tissue Tumors.—Sarcomata.—Primary sarcoma is veryrarely found in the rectum. Secondary invasion is not infrequent, due tometastases from the original growth in other pelvic organs. The primary sarcomata are of three types. A form frequently foundin the small intestine, but rarely in the rectum, is the lymphosarcoma,which arises in the lymph-follicles of the intestinal wall. Usually, how-ever, such growths are not single and confined to the rectum alone, but aremultiple and are present also in some other portion of the intestinal of causing stenosis as do the carcinomata, a lymphosarcomatousgro
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