Is capsular retraction a specific CT sign of malignant liver tumor? |
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Authors: | N Sans P Fajadet D Galy-Fourcade J Trocart T Jarlaud H Chiavassa J Giron J J Railhac |
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Institution: | (1) Department of Medical Imaging, CHU Purpan, Place du Docteur Baylac, F-31059 Toulouse Cedex, France, FR;(2) Department of Medical Imaging, Nouvelle clinique de l'Union, F-31240 Saint-Jean, France, FR |
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Abstract: | The aim of this study was to assess if a liver capsular retraction is a specific CT sign in malignant hepatic tumors. The
authors reviewed retrospectively 320 hepatic CT scans obtained in 300 patients during a 3-year period. These patients presented
with benign (n = 64) or malignant (n = 236) hepatic tumors. In 7 patients we found retraction of the capsule surrounding the tumor. All these tumors were histologically
proven as malignant lesions: 4 metastases (none being chemically treated), 2 peripheral cholangiocarcinomas, and 1 epithelioid
hemangioendothelioma. The prevalence of this sign was 2.18 % (7 of 320) in this series. This capsular retraction pattern has
never been found in hepato-cellular carcinomas (no fibrolamellar in this series) and benign lesions. Liver capsular retraction
is an uncommon but specific (100 %) sign in malignant hepatic tumors; however, a larger and prospective series is needed.
Received: 7 August 1998; Revision received: 2 October 1998; Accepted: 27 January 1999 |
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Keywords: | : CT studies Liver Tumor |
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