A 38-year-old woman was admitted to the hospital because of massive hemoptysis. A chest X-ray film disclosed an infiltrative shadow. A bronchoscopic examination revealed a small, pulsatile, papillary protrusion in the orifice of the middle lobe bronchus, and massive bleeding from the protrusion was observed during the examination. Bronchial arteriography showed convolution and mild hypervascularization of the right bronchial artery. A middle lobectomy was performed, and the protrusion was histologically shown to be a primary racemose hemangioma of the bronchial artery.