Cytologic features of sclerosing hemangioma of the lung on crush preparations.

Sclerosing hemangioma of the lung is a rare benign neoplasm. The majority of the literature published on sclerosing hemangioma has focused on the histologic features, while only a few case reports have described the cytologic features. We report two additional cases of sclerosing hemangioma of the lung in which the cytologic material was prepared at the time of frozen section. Because of the rarity of this lesion and the overlapping cytologic features with other primary malignant lung tumors, awareness of the cytologic features of sclerosing hemangioma may help to avoid a diagnosis of malignancy. This is especially true pre- and intraoperatively because a limited resection may suffice if a diagnosis of sclerosing hemangioma can be established.