title: Fluid--fluid level in cystic cerebral metastatic melanoma.
abstract: Two cases of cystic metastatic melanoma are presented. The only reliable computed tomography sign of a true cystic lesion is the presence of an interface, such as between blood and tumor fluid. Differentiation of cystic metastatic melanoma from other cystic lesions of the brain is discussed.
mesh_terms: D000328:Adult; D001932:Brain Neoplasms / Q000000981:diagnostic imaging* / Q000556:secondary; D002543:Cerebral Hemorrhage / Q000000981:diagnostic imaging*; D005260:Female; D006406:Hematoma / Q000000981:diagnostic imaging*; D006801:Humans; D008545:Melanoma / Q000000981:diagnostic imaging* / Q000556:secondary; D008875:Middle Aged; D014057:Tomography, X-Ray Computed