Report of A Rare Lung Neoplazm: Peripheral Intrapulmonary Lipoma

Abstract

Lipomas are frequent benign neoplasms; but however, it is rare in visceral organs such as the lung and a limited number of cases have been reported. Most pulmonary lipomas occur in the endobronchial localization. Peripheral intrapulmonary lipomas consist of 16 cases described in the literature in the past 100 years, including this case. Our case was found incidentally during thoracotomy due to secondary spontaneous pneumothorax. Macroscopically, it was 1.2 cm in diameter, well circumscribed, thin capsules, and yellow mass in the cut surface. Microscopically, the tumoral lesion consisting of uniform mature adipocytes surrounded by a thin fibrovascular connective tissue capsule was found to be compatible with lung lipoma. In our article, the clinical, macroscopic and microscopic features of a peripheral intrapulmonary lipoma case are discussed.