Gout of the temporomandibular joint: pitfalls in diagnosis.

Gout is a frequent benign disease that rarely affects the temporomandibular joint (TMJ) alone. When it does, the disease is usually confined to the joint space and leads to pain and limitation of jaw opening (acute gout). The case described in this report is atypical in so far as it extended beyond the joint capsule into the pterygoid muscle and destroyed the head of the mandible, the temporal bone and the greater wing of the sphenoid bone. This clinical behaviour in combination with the radiographic appearance created the appearance of a benign but osteolytic lesion. The clinical, radiographic and biological features of gout in the TMJ are reviewed and treatment options are discussed.