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CT features of hepatic metastases from hepatoid adenocarcinoma

 Min-Yung Chang  ;  Hye Jin Kim  ;  Seung Hyun Park  ;  Hyunki Kim  ;  Dong Kyu Choi  ;  Joon Seok Lim  ;  Mi-Suk Park  ;  Myeong-Jin Kim  ;  Honsoul Kim 
 Abdominal Radiology, Vol.42(10) : 2402-2409, 2017 
Journal Title
 Abdominal Radiology 
Issue Date
Adenocarcinoma/diagnostic imaging* ; Adenocarcinoma/secondary ; Adult ; Aged ; Carcinoma, Hepatocellular/diagnostic imaging* ; Carcinoma, Hepatocellular/pathology* ; Colonic Neoplasms/pathology* ; Contrast Media ; Female ; Humans ; Liver Neoplasms/diagnostic imaging* ; Liver Neoplasms/secondary* ; Male ; Middle Aged ; Retrospective Studies ; Stomach Neoplasms/pathology* ; Tomography, X-Ray Computed/methods*
CT ; Hepatocellular carcinoma ; Hepatoid adenocarcinoma ; Liver metastasis
PURPOSE: The purpose of this study was to report the imaging presentation of hepatic metastases from hepatoid adenocarcinoma (HAC).

METHODS: We retrospectively identified 11 patients (10 men and 1 woman; median age 66) with HAC liver metastasis who underwent contrast-enhanced computed tomography (CT) which included arterial phase and portal venous phase. Two radiologists analyzed the imaging parameters, which included the enhancement pattern on arterial and portal phase images, necrosis, venous thrombi, and overall imaging diagnosis, and arrived at a consensus.

RESULTS: On arterial phase, the liver lesions had global hyper-enhancement (n = 0), heterogeneous hyper-enhancement (63.6%; n = 7/11), peripheral hyper-enhancement (n = 0), iso-enhancement (n = 0/11), or hypo-enhancement (36.4%; n = 4/11). On portal venous phase, homogenous hypo-enhancement (18.2%; n = 2/11) and heterogenous hypo-enhancement (81.8%; n = 9/11) were observed. Venous thromboses occurred in four patients (36.4%; n = 4/11). The overall imaging diagnoses were "HCC-like" in seven patients (63.6%; n = 7/11), "indeterminable" in 1 patient (9.1%; n = 1/11), and "HCC-unlike" in three patients (27.3%; n = 3/11).

CONCLUSIONS: The imaging features of HAC liver metastasis were varied. Arterial phase enhancement coupled with venous phase washout (resembling HCC imaging features) was a major finding, but arterial phase hypo-enhancement (distinct from HCC imaging features) was also frequently encountered.
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1. College of Medicine (의과대학) > Dept. of Pathology (병리학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Myeong Jin(김명진) ORCID logo https://orcid.org/0000-0001-7949-5402
Kim, Hon Soul(김한솔)
Kim, Hyunki(김현기) ORCID logo https://orcid.org/0000-0003-2292-5584
Park, Mi-Suk(박미숙) ORCID logo https://orcid.org/0000-0001-5817-2444
Park, Seung Hyun(박승현)
Lim, Joon Seok(임준석) ORCID logo https://orcid.org/0000-0002-0334-5042
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