Nontraumatic orbital leptomeningeal cyst in an adult: case report.

To our knowledge, there is no reported case of visual disturbance associated with a nontraumatic orbital leptomeningeal cyst in the literature. We report the first such case and discuss the differential diagnosis of cystic lesions of the meninges that may be found on the surface of the brain.

Malignant melanoma of the lacrimal sac.

The case of an 80-year-old woman who presented with a 1-year history of a right medial canthal mass and bloody tears and who was found to have a lacrimal sac melanoma is reported. A literature search revealed that only 16 cases of primary lacrimal sac melanoma have been reported. Current therapeutic modalities are discussed.

Retinal periphlebitis after hormonal treatment.

Two cases, those of a man and a woman, developed retinal periphlebitis after hormonal treatment for infertility and contraceptives, respectively. Both had a unilateral severe decrease in visual acuity, and a central scotoma and defect in color vision were also present. The fundus had retinal edema, especially of the macula, a hyperemic disc with blurred margins, normal arteries, congested veins, and marked sheathing along the main veins, with retinal hemorrhages in the inferior half of the retina.