Maxillofacial pain.

The paranasal sinuses are a common source of maxillofacial pain. When the sphenoid sinus is involved, 13 different structures can also be affected. The various neuralgias are usually easily recognized by their classic symptoms. Temporal arteritis must be diagnosed early in order to prevent blindness. The temporomandibular joint syndrome remains the most misdiagnosed and misunderstood orofacial pain.