Dumbbell-shaped trigeminal neurinoma in a child.
We experienced a case of solitary trigeminal neurinoma in a 10-year-old boy without stigmata of neurofibromatosis. This boy presented with progressive cerebellar ataxia, right abducens palsy and right hemiparesis. Magnetic resonance images (MRI) demonstrated a tumour extending into both the middle and posterior fossas forming a dumbbell-shaped mass lesion with a size of 35 x 30 x 45 mm. The tumour was successfully removed free of complications by a two-stage operation composed of right subtemporal and suboccipital retromastoid approaches. It is extremely rare for a solitary neurinoma to occur at this site in a child without neurofibromatosis. Surgical approaches in this type of tumour are discussed with a review of the literature.
Tsuboi
K
K
Department of Neurological Surgery, University of Tsukuba, Japan.
Fujimori
H
H
Tomono
Y
Y
Hamano
K
K
Nose
T
T
D002648:Child; D003390:Cranial Nerve Neoplasms / Q000473:pathology / Q000601:surgery*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009442:Neurilemmoma / Q000473:pathology / Q000601:surgery*; D016896:Treatment Outcome; D014276:Trigeminal Nerve / Q000601:surgery*