Fat-containing lesions of the liver: cross-sectional imaging findings with emphasis on MRI.
OBJECTIVE
The purpose of this pictorial essay is to identify different types of liver lesions that contain fat. Cross-sectional imaging findings of fat- or lipid-containing lesions can help in characterizing focal liver lesions. We searched our archive retrospectively and reviewed the literature for fat-containing liver lesions and identified 16 different types.


CONCLUSIONS
These lesions can contain macroscopic fat (i.e., angiomyolipoma, lipoma, liposarcoma, hydatid cyst, lipopeliosis, adrenal rest tumor, pseudolipoma, hepatic teratoma, pericaval fat, extramedullary hematopoiesis, and metastases) or intracellular lipid (i.e., focal steatosis, adenoma, focal nodular hyperplasia, regenerative nodules, and hepatocellular carcinoma). CT, MRI, and sonographic findings of these lesions can help in characterization by allowing specific diagnosis or narrowing the differential diagnosis of liver lesions.
Basaran
Ceyla
C
Department of Radiology, Hacettepe University School of Medicine, Sihhiye, Ankara 06100, Turkey.
Karcaaltincaba
Musturay
M
Akata
Deniz
D
Karabulut
Nevzat
N
Akinci
Devrim
D
Ozmen
Mustafa
M
Akhan
Okan
O
D003937:Diagnosis, Differential; D005234:Fatty Liver / Q000175:diagnosis* / Q000000981:diagnostic imaging; D006801:Humans; D008113:Liver Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D008279:Magnetic Resonance Imaging; D018205:Neoplasms, Adipose Tissue / Q000175:diagnosis* / Q000000981:diagnostic imaging; D011859:Radiography; D014463:Ultrasonography