Abstract
The aim of this pictorial essay is to review the spectrum of fat-containing liver lesions and their characterisation on magnetic resonance imaging with focus on the radiological features that aid in the differential diagnoses. Fat-containing liver lesions comprise a heterogeneous group of tumours with variable imaging findings. Magnetic resonance imaging clearly displays the micro- and macroscopic fat components of the lesions and other characteristic features that are helpful tools to make the differential diagnosis.
Highlights
The increasing use of imaging examinations for abdominal evaluation and recent technical advances in radiology have led to an increase in the number of liver lesions detected
Most liver lesions are benign and can be diagnosed on the basis of their imaging characteristics[11]. This pictorial essay reviews the characteristics of fatcontaining liver lesions on magnetic resonance imaging (MRI), with or without gradient-recalled echo (GRE) sequences
Angiomyolipoma Angiomyolipomas are rare benign mesenchymal tumours. These lesions exhibit variable signal intensity on MRI because they contain different amounts of fat, Study conducted at Universidade Federal do Rio de Janeiro (UFRJ) and at D’Or Institute for Research and Education, Rio de Janeiro RJ, Brazil
Summary
The increasing use of imaging examinations for abdominal evaluation and recent technical advances in radiology have led to an increase in the number of liver lesions detected. The evaluation of the liver by imaging methods has been the subject of a series of recent publications in the radiology literature of Brazil[1,2,3,4,5,6,7,8,9,10]. Most liver lesions are benign and can be diagnosed on the basis of their imaging characteristics[11]. This pictorial essay reviews the characteristics of fatcontaining liver lesions on magnetic resonance imaging (MRI), with or without gradient-recalled echo (GRE) sequences. We highlight the patterns of fat components that aid in the various differential diagnoses
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