title: CT demonstration of low density ring in liver metastases.
abstract: A case of liver metastases from colon carcinoma showing a low density ring sign is presented. Cadaver studies suggest that this sign can be produced by compressed liver cells and sinusoids.
mesh_terms: D002288:Adenocarcinoma, Mucinous / Q000000981:diagnostic imaging / Q000556:secondary*; D006801:Humans; D008099:Liver / Q000000981:diagnostic imaging*; D008113:Liver Neoplasms / Q000000981:diagnostic imaging / Q000556:secondary*; D008297:Male; D008875:Middle Aged; D012811:Sigmoid Neoplasms / Q000473:pathology*; D014057:Tomography, X-Ray Computed