title: Mass lesions of the mesencephalon.
mesh_terms: D000328:Adult; D001932:Brain Neoplasms / Q000000981:diagnostic imaging*; D002533:Cerebral Angiography; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008636:Mesencephalon / Q000000981:diagnostic imaging; D008875:Middle Aged; D011011:Pneumoencephalography