[Olfactory groove meningioma].

Twelve cases of olfactory groove meningioma had been reported. The first symptom of the disease was dysfunction of the olfactory nerve. Rhinologists are responsible for the early diagnosis of the disease. The very important diagnostic points of the disease are dysfunction of the olfactory nerve; visual impairment; headache; Foster-Kennedy's syndrome and the CT scan. The clinical features, diagnosis and treatment of the 12 cases were discussed. Early diagnosis of the diseases is very important for the performance of the operation via the rhino-anterior fossa approach.