• A 68-year-old man had memory lapse, character change, and unsteady gait. Skull films disclosed a spontaneous pneumocephalus with air in both ventricles. A dense, bony lesion in the right ethmoid area was thought to be an osteoma, a not infrequent cause of dural erosion. The bony lesion, however, proved to be an osteoid reaction around a primary neurilemoma. Neurilemomas arising in the paranasal sinuses are uncommon tumors and, to the best of our knowledge, this is the first reported case of a patient with a neurilemoma who had pneumocephalus. The lesion was excised through a Lynch approach, and the patient has remained free of tumor for the past two years.
(Arch Otolaryngol 1983;109:417-419)
Miglets AW, Rood L, Lucas JG. Pneumocephalus From a Frontal-Ethmoid Neurilemoma. Arch Otolaryngol. 1983;109(6):417–419. doi:10.1001/archotol.1983.00800200063018
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