Anatomy and Pathology of the Cerebellar Peduncle

Hamartomatous lesions are observed in 80% of all patients with neurofibromatosis type 1. Multiple lesions in the basal ganglia, optic radiation, brainstem, and cerebellar peduncles are common (Figure 19). Pathologically, these lesions are foci of hyperplastic or dysplastic glial proliferation and considered malformations rather than neoplasms. ................
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