title: Radiodense ions within a third ventricular colloid cyst.
mesh_terms: D002552:Cerebral Ventricles; D014695:Cerebral Ventriculography; D003560:Cysts / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009077:Mucins / Q000032:analysis; D014057:Tomography, X-Ray Computed
chemical_list: D009077:Mucins