Retrobulbar cavernous hemangioma with slowly progressive proptosis.

Retrobulbar tumors may be difficult to diagnose by conventional ultrasonography. Cavernous hemangioma that developed unusually late in a 45-year-old woman with unilateral proptosis was accurately diagnosed only by computerized tomography (EMI) scan. The patient was successfully operated upon using the Naffziger approach, with good cosmetic result.