Biparieto-occipital craniotomy with hyperextended neck--"sea lion" position.
D000293:Adolescent; D000328:Adult; D001254:Astrocytoma / Q000601:surgery; D001932:Brain Neoplasms / Q000601:surgery*; D003399:Craniotomy / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008636:Mesencephalon; D010870:Pineal Gland; D011149:Pons; D013724:Teratoma / Q000601:surgery