[Acute unilateral blindness as the initial symptom of meningeosis lymphomatosa].

The development of Meningeosis lymphomatosa is a rare event even in high grade Non-Hodgkin's lymphoma, often without any typical clinical signs. We report a case, where a unilateral sudden loss of vision was the first symptom of meningeosis lymphomatosa and indicated a generalized relapse in the patient, who seemed so far to be in complete remission.