[A syndrome due to pathology of the base of the inferior cerebellar peduncle in cystic-adhesive arachnoiditis of the cisterna magna and craniospinal area].

A syndrome is described which emerged with the lesions localized in the dorsal parts of lower cerebellar limbs just at their branching from medulla. Spinocerebellar pathways are damaged as well as those of profound sensitivity from Gall and especially Burdach nuclei, the latter giving fibers which partially run along the lower limb to cerebellum. The postural inclination toward the afflicted side is characteristic of the patients in a standing position. Vibration sensitivity is impaired ipsilaterally and predominantly on the foot. The truncal inclination increases when eyes are closed. This syndrome was detected in 115 patients with cisterna magna or craniospinal arachnoiditis. The focus has been confirmed by pneumoencephalography in 110 patients and during surgical interventions on the posterior cerebral fossa in 5 patients.