[Pseudo-optic neuritis as a manifestation of craniopharyngioma (2 cases)].

In two case of cystic craniopharyngioma the initial presentation was misleading and suggested acute retrobulbar optic neuritis: 1) isolated and unilateral drop of visual acuity of recent onset; 2) total remission in a few weeks, then a relapsing and steroid-sensitive course; 3) increase of C.S.F. gammaglobulins content in one case, normal CT scan in the second one. The diagnosis was corrected 36 and 18 months respectively after the onset of the clinical disorders.