Wegener granulomatosis involving the pterygopalatine fossa: an unusual case of trigeminal neuropathy.

We report on a case of Wegener granulomatosis in the pterygopalatine fossa that was associated with trigeminal neuropathy. MR and CT examinations were useful in depicting the extent of the lesion and suggesting a perineural spread. Diagnosis was confirmed with positive serum assay findings for the presence of cytoplasmic antineutrophil cytoplasm antibody.