CYTOLOGIC STUDY OF PERITONEAL WASHINGS IN GASTROINTESTINAL MALIGNANT LESIONS
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Cytologic study of peritoneal washings obtained at the time of laparotomy was performed for 54 patients with gastrointestinal malig nant lesions. The locations of the tumours were as follows: 16 gas-trie cancers, 14 pancreatic, 13 colonic, 9 rectal, 1 bile duct and I small intestine. Malignant cells were detected in the peritoneal washings of 9 out of the 54 patients ( 17% ) . The data reported suggest that peritoneal wahings cytology is a good predictor of prognosis for patients with gastrointestinal malignant lesions . The survival of pa tients with negative cytology was significantly longer than that reported in patients with positive cytology. Peritoned fluid cytology may serve as an indication for more inten sive therapy.