title: Floating Myodil--a new sign of fat in the ventricles.
abstract: A case in which a remarkable series of CT studies demonstrated a dermoid cyst is reported. There was leakage of fat into the ventricular system which caused hydrocephalus due to adhesions partly obstructing the fourth ventricular outlets. The latter was confirmed by a ventriculogram using Myodil which dissolved in, or combined with, the fat produced by the tumour. This resulted in a high attenuation substance of lower specific gravity than CSF, which appeared to cause acute ventriculitis.
mesh_terms: D000328:Adult; D002551:Cerebral Ventricle Neoplasms / Q000000981:diagnostic imaging*; D014695:Cerebral Ventriculography; D003884:Dermoid Cyst / Q000000981:diagnostic imaging*; D004660:Encephalitis / Q000139:chemically induced / Q000150:complications; D004805:Ependyma; D006801:Humans; D006849:Hydrocephalus / Q000209:etiology; D007462:Iodobenzenes / Q000009:adverse effects*; D007481:Iophendylate / Q000009:adverse effects*; D008055:Lipids / Q000134:cerebrospinal fluid*; D008297:Male; D014057:Tomography, X-Ray Computed
chemical_list: D007462:Iodobenzenes; D008055:Lipids; D007481:Iophendylate