Ocular motor paralysis and arachnoid cyst

R. L. Lesser, R. B. Geehr, D. D. Higgins and A. D. Greenberg

Four days after a 32-year-old woman was hit in the right eye with a racquetball, a paralysis of the right third nerve developed. Computerized axial tomography with metrizamide demonstrated an arachnoid cyst in the interpeduncular fossa. After the cyst was surgically decompressed, the third-nerve paralysis cleared.