Retromastoid approach for biopsy of brain stem tumors.
D000328:Adult; D001706:Biopsy / Q000295:instrumentation / Q000379:methods*; D001932:Brain Neoplasms / Q000473:pathology*; D001933:Brain Stem / Q000473:pathology*; D002528:Cerebellar Neoplasms / Q000473:pathology; D002531:Cerebellum / Q000473:pathology; D002648:Child; D002675:Child, Preschool; D005260:Female; D005910:Glioma / Q000473:pathology*; D006801:Humans; D008297:Male; D008416:Mastoid / Q000601:surgery; D008527:Medulloblastoma / Q000473:pathology; D008866:Microsurgery / Q000295:instrumentation; D014057:Tomography, X-Ray Computed