Adult nasolacrimal duct mucocele.

aging scan showed no abnormalities. Lumbar puncture showed an increased opening pressure (225 cm H2O), but the cerebrospinal fluid showed no cells, no hypoglycorrhachia, and no elevation in the protein concentration. Treatment with ATRA was discontinued, and the APML was treated with a combination of arsenic trioxide, daunorubicin hydrochloride, and cytosine arabinoside. Over the next 6 weeks, subsequent to and corresponding with the discontinuation of ATRA therapy, the headache, papilledema, and abducens palsy resolved. Treatment with arsenic trioxide, daunorubicin, and cytosine arabinoside was continued for 3 months, and the patient has remained in remission.