Transalar encephalocele associated with Wegener granulomatosis and meningeal enhancement: Case report

Transalar encephaloceles are rare lesions that do not fit the standard classification of basal encephaloceles. Typically, these lesions present in adulthood, with non-specific symptoms. We report here a case of a patient with Wegener disease in whom a large transalar encephalocele posterior to the sinus was noted when he was preoperative for left maxillary sinus surgery. The encephalocele demonstrated irregular peripheral enhancement along the margin-a very uncommon finding-as well as contrast enhancement of the basal meninges, which can be seen occasionally with Wegener granulomatosis.