Intramuscular hemangiomas of the mylohyoid and sternocleidomastoid muscle.

Intramuscular hemangiomas of the head and neck are uncommon benign vascular tumors. They arise frequently in the masseter and trapezius muscle. However, intramuscular hemangiomas arising from the mylohyoid and sternocleidomastoid muscle are extremely rare. We, herein, report additional two cases with intramuscular hemangioma of the mylohyoid and sternocleidomastoid muscle, and review the literatures pertaining to this condition. Imaging studies such as magnetic resonance image (MRI) were diagnostic and the tumors were resected completely with the cuff of normal surrounding muscle. At follow-up examination the patients have been well, without evidence of tumor recurrence after surgery. Intramuscular hemangioma of the head and neck, despite its rarity, should be considered in the differential diagnosis of the head and neck masses.