Imaging diagnosis of cavernous hemangioma of the rib--one case report and review of the literature.

Osseous hemangioma is a benign neoplasm, rarely located in the ribs. A 56-year-old female patient without specific complaint had a large extrapleural lesion on chest posteroanterior radiograph. Expansile destruction of left seventh rib and relatively fine trabeculation were noticed in the mass from plain roentgenogram and computed tomography (CT). Contrast enhancement in noncalcified component of the lesion was revealed. Pleural effusion, lung parenchymal or mediastinal abnormality were not identified. Resection of the lesion with part of the originating rib was carried out. The pathologic diagnosis was cavernous hemangioma. We present a case with a large rib hemangioma which often leads to difficulty in radiologically differential diagnosis with other common malignant rib tumors. We also review the literature about hemangioma and malignant neoplasms of the ribs.