The authors take the opportunity of 11 cases of pulmonary hamartomas observed during the last 10 years, to specify the clinical and diagnostic problems and the therapeutic possibilities of this rare pulmonary neoplasm. The hamartochondroma is found mainly in the male sex, between the age of the fifth and sixth decades of life; the size of the neoplasm varies from 2 to 4 cm, rarely exceeding 10 cm. In 8 cases the operation was the simple enucleation of the hamartochondroma or its removal by atypical resection: in only one case, become of the conspicuous dimensions of the neoplasm, was it necessary to perform a typical lobectomy. The follow-up did not demonstrate any relapse, or the appearance of carcinoma of the lung in any of the cases under observation and surgically treated.
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