Fine‐needle aspiration diagnosis of sclerosing hemangioma (pneumocytoma): Report of a case and review of the literature

Sclerosing hemangioma (pneumocytoma) is a rare benign lung tumor with uncertain histogenesis but characteristic histology. Reports of the cytopathology of this tumor are even rarer with only a handful of cases in the literature—many of these incorrectly diagnosed by cytology initially. Herein, we describe a case of sclerosing hemangioma diagnosed prima facie by fine‐needle aspiration cytology. A cell block preparation with accompanying immunohistochemistry was instrumental in making the diagnosis. A review of the literature is also presented. Diagn. Cytopathol. 2014;42:242–246. © 2012 Wiley Periodicals, Inc.