TWO CASES OF SCLEROSING HEMANGIOMA OF THE LUNG

Sclerosing hemagioma of the lung is a relatively rare disease, and has been ragarded as a benign tumor arising in the alveolar epithelial cells. Recently, however, the malignant cases have been found. We report two cases of the disease, together with a review of the domestic reference. Case 1 is a 42-year-old female who had a round shadow, 4×3cm in size with smooth and clear edge, in the right lower lung field, which was found at physical examination. Bronchographic examination showed a suppressed peripheral branch B5, in which incisurae were found by CT. The middle lobe was resected. Case 2 is a 48-year-old female who had atelectasis of the middle lobe and a round shadow of 3×2.5cm in chest X-ray film taken at when she suffered from fever. Bronchographic examination revealed a narrowed and suppressed introitus of the middle lobar branch, a convergence of peripheral branches, and a passage of the contrast medium into around the tumor. Bronchial angiography revealed a new formation of the peripheral vessels of the tumor, that is, so-called melon-peel-like stitched vascularity. The middle lobe which presented atelectasis as well as the tumor was resected. In both case 1 and 2, pathologic findings suggested a sclerosing hemangioma without heterologous cells in the tumor and no sign of lymph node metastasis.