Pleural hemangioma: A case report and review of the literature.

A middle-aged female with history of multinodular goiter, Hashimoto disease, and chronic vitamin B12 deficiency presented with palpitations and subsequent exertional dyspnea. Initial radiographic analysis suggested mediastinal cavernous hemangioma, but biopsy showed features consistent with pleural hemangioma. Pleural hemangioma should be considered among the differential diagnoses for recurrent unilateral pleural effusion. Pleural hemangioma should be distinguished from other more common entities including the similarly benign pulmonary hemangioma and the more aggressive pleural hemangioendothelioma.