FIELD: medicine, pathomorphology, oncology. SUBSTANCE: method deals with detecting a great number of lymph nodes in fatty fiber of removed preparation. One should resect pararectal fiber from intestinal wall. Isolated fatty tissue is stretched on a frame and impregnated in n-hexane. Exposure time is 3 h. After that the preparation obtained is washed in running water and impregnated into 70-% ethanol at 12-14 h exposure. Lymph nodes are detected by successive cutting a fatty tissue at 0.3-0.5 cm pace. The method provides shortened period in detection of lymph nodes. EFFECT: higher efficiency. 1 dwg, 2 ex
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