title: Cerebral granular cell tumor occurring with glioblastoma multiforme: case report.
abstract: A 65-year-old man presented with 4 weeks of partial right visual field loss. A left occipital granular cell tumor was diagnosed via open biopsy. No specific tumoricidal therapy was given, and the patient returned 2 weeks later with fluent dysphasia and mild right hemiparesis, and formed visual hallucinations. A large left parietotemporal mass, separate from the granular cell tumor, was diagnosed as a glioblastoma multiforme by stereotactic biopsy. The histogenesis of cerebral granular cell tumors is controversial; this case supports recent speculation of their possible glial origin.
authors.affiliation: Department of Pathology, University of Utah Medical Center, Salt Lake City 84132.
authors.forename: C P
authors.initials: CP
authors.lastname: Harris
authors.forename: J J
authors.initials: JJ
authors.lastname: Townsend
authors.forename: D L
authors.initials: DL
authors.lastname: Brockmeyer
authors.forename: M P
authors.initials: MP
authors.lastname: Heilbrun
mesh_terms: D000368:Aged; D001932:Brain Neoplasms / Q000473:pathology* / Q000628:therapy; D003131:Combined Modality Therapy; D005909:Glioblastoma / Q000473:pathology*; D006801:Humans; D008297:Male; D009378:Neoplasms, Multiple Primary / Q000473:pathology*; D009379:Neoplasms, Muscle Tissue / Q000473:pathology* / Q000628:therapy