title: Thorotrast induced adhesive arachnoiditis associated with meningioma and schwannoma.
abstract: Adhesive arachnoiditis, a meningioma and a schwannoma were found at autopsy in a 56 year old man who had undergone Thorotrast myelography 33 years previously. Thorotrast was demonstrated in tissue sections by transmission and scanning electron microscopy, radioautography, and x-ray spectrometry.
mesh_terms: D001100:Arachnoiditis / Q000139:chemically induced / Q000473:pathology*; D001932:Brain Neoplasms / Q000139:chemically induced / Q000473:pathology*; D002530:Cerebellopontine Angle / Q000473:pathology; D006801:Humans; D008297:Male; D008579:Meningioma / Q000139:chemically induced / Q000473:pathology*; D008875:Middle Aged; D009442:Neurilemmoma / Q000139:chemically induced / Q000473:pathology*; D013116:Spinal Cord / Q000473:pathology; D013702:Temporal Lobe / Q000473:pathology; D013911:Thorium Dioxide / Q000009:adverse effects*; D000267:Tissue Adhesions
chemical_list: D013911:Thorium Dioxide