There were examined 124 patients with nidal affection of liver. In 52.4% of them the cyst was revealed, in 31.5%--the benign tumor, in 16.1%--malignancy. In the treatment of cyst of all sizes the puncture method with injection into her cavity of 96% ethanol solution was applied. Benign tumor was verified using the puncture biopsy. If the tumor less than 5 cm in diameter was present, the atypical hepatic resection was performed, if bigger one--hemihepatectomy. Mortality had constituted 3-8%. Surgical tactics is substantiated.
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