A Case of Schwannoma of Ethmoid Sinus

Abstract

The patient was a 46-year-old female who complained of left visual disturbance of 2.5 years duration. Ophthalmologic examination showed a constriction of the ear side, and center of the visual field and visual acuity of 0.02. A CT scan image showed a round shadow in the apex of the orbit and left ethmoid sinus. A tissue specimen was taken and the histopathological diagnosis was a mixed type schwannma. The tumor, which depressed the lamina papyracea laterally, was totally removed through an external route. After surgery, the visual field and visual acuity recovered almost completely.