Imaging mimickers of cholangiocarcinoma: a pictorial review

Cholangiocarcinoma (CCA) is the second most common primary hepatobiliary malignancy and presents as three separate morphological subtypes; namely mass-forming, periductal-infiltrating, and intraductal-growing patterns. Each of these subtypes have distinct imaging characteristics, as well as a variet...

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Bibliographic Details
Published in:Abdominal imaging 2022-03, Vol.47 (3), p.981-997
Main Authors: Chiow, Si Min, Khoo, Hau Wei, Low, Jee Keem, Tan, Cher Heng, Low, Hsien Min
Format: Article
Language:English
Subjects:
Cholangiocarcinoma
Diagnosis
Gastroenterology
Hepatology
Imaging
Malignancy
Medicine
Medicine & Public Health
Morphology
Radiology
Review
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Summary:Cholangiocarcinoma (CCA) is the second most common primary hepatobiliary malignancy and presents as three separate morphological subtypes; namely mass-forming, periductal-infiltrating, and intraductal-growing patterns. Each of these subtypes have distinct imaging characteristics, as well as a variety of benign and malignant mimics, making accurate diagnosis of CCA on imaging challenging. Whilst histopathological examination is required to arrive at a definitive diagnosis, it is still important for radiologists to be cognizant of these entities and provide reasonable differential diagnoses, as these potentially have a large impact on patient management. This pictorial essay illustrates the three morphological subtypes of CCA, as well as some important mimics for each subtype, that are encountered in clinical practice.
ISSN:2366-004X
2366-0058
DOI:10.1007/s00261-021-03399-9