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The Journal of Thoracic and Cardiovascular Surgery, Vol 104, 674-678, Copyright © 1992 by The American Association for Thoracic Surgery and The Western Thoracic Surgical Association

ARTICLES

Pulmonary hamartoma

CP Hansen, H Holtveg, D Francis, L Rasch and S Bertelsen
Department of Thoracic, Bispebjerg Hospital, Copenhagen, Denmark.

Eighty-nine cases of pulmonary hamartoma were studied. There were 51 men and 38 women, with a mean age of 57.5 years (range 14 to 76 years). A histologic diagnosis from examination of the resection specimens was obtained in all patients who had operations. Moreover, transthoracic needle aspiration biopsies were performed in 40 patients, with a diagnostic result in 34 (85%). The hamartomas were equally distributed in the pulmonary lobes; mean transverse diameter at the time of diagnosis was 21.7 +/- 16.2 mm. Tumor size was independent of the anatomic localization, but it correlated with the age of the patients (p less than 0.01). Tumor growth was recorded in 15 of 31 patients who had follow-up (45%); mean expansion in transverse diameter was 3.2 +/- 2.6 mm per year during an average observation time of 4.1 years (range 1 to 20 years). Pulmonary symptoms were present in 35 patients (39%). Seventy-five patients underwent operations as follows: enucleation (54), resection (11), lobectomy (5), pneumonectomy (4), and bronchoscopic removal (1). Since most pulmonary hamartomas are nonexpanding or slowly growing neoplasms, it is concluded that operation is necessary only when expansion is recorded in young or middle-aged patients and in patients with pulmonary symptoms.

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