TITLE:
Multi-Detector-Row CT Diagnosis of Adrenal Incidentaloma in Patients with Hepatocellular Carcinoma
AUTHORS:
Taisuke Harada, Tamotsu Kamishima, Satoshi Terae, Yuya Onodera, Hiroki Shirato
KEYWORDS:
CT; Adrenal Incidentaloma; Hepatocellular Carcinoma; Lipid-Poor Adrenal Adenomas; Metastatic Adrenal Tumors
JOURNAL NAME:
Advances in Computed Tomography,
Vol.2 No.1,
March
28,
2013
ABSTRACT: We investigate the diagnostic reliability of differentiating between lipid-poor adrenal adenomas and metastatic adrenal tumors originating from hepatocellular carcinoma (HCC) using a routine dynamic CT protocol for liver imaging. Eighteen metastatic adrenal tumors originating from HCC and 13 lipid-poor adrenal adenomas were identified. Dynamic CT data were analyzed for CT attenuation of adrenal lesions before and after contrast administration. When a cutoff of 36 HU was set for adrenal lesions at pre-contrast attenuation, the sensitivity and specificity for the diagnosis of metastatic lesions were 94.4%and 92.3%, respectively. Attenuation criteria on pre-contrast CT may help optimize the differentiation between these lesions.