The clinical, neuroradiological, and histological findings of an adult
patient suffering from malignant optic glioma is reported. Rapid visu
al deterioration was misdiagnosed for several months until biopsy conf
irmed the tumor. The patient died despite radiation therapy nine month
s after first symptoms. Our presentation will focus on the problems of
diagnosing and establishing therapeutic procedures in this rare malig
nant neoplasm.