Hemangiomas are benign tumors originating from vascular structures in the body. Although it is common in the head and neck region, it is rarely seen in the nasal cavity and paranasal sinuses. Histologically, there are three types of hemangiomas including capillary, cavernous, and mixed types, the most common being a cavernous hemangioma. Cavernous hemangiomas in the nasal cavity usually originate from the lateral nasal wall and cause symptoms such as nasal congestion and nosebleeds.
Part of the book: Maxillofacial Surgery and Craniofacial Deformity