A rare case of haemangioblastoma of the medulla oblongata with atypical clinical course.

An autopsy case of haemangioblastoma of the medulla oblongata is presented. The clinical course was atypical and suggested a.l.s., demyelinization process of the CNS, or systemic disease. Two years before, paresis of IX, X, XII cranial nerves, left-side paresis and positive extensor plantar responses had been found. Pathological EEG recordings from both temporal regions with more pronounced changes on the left side had been observed too. In this case, we have not found any other tumours apart from that in the medulla oblongata.