Preferred Label : fat sparing in solid mass;
RADLEX synonyms : lesional fat sparing;
Definition : [LI-RADS] Paucity of fat in solid mass relative to steatotic liver: CT (All of the
following): • The observation is a solid mass • The liver has attenuation 40 HU
• The observation has greater attenuation than liver MRI (All of the following): •
The observation is a solid mass AND Compared to liver, the mass has any of the following:
• Less signal loss on OP compared to IP • Lower fat signal on fat-only images • Lower
fat fraction on fat-fraction maps • Less signal loss on fat-suppressed compared to
non-fat-suppressed images;
Source : LI-RADS 2020;
Origin ID : RID43347;
Member of
[LI-RADS] Paucity of fat in solid mass relative to steatotic liver: CT (All of the
following): • The observation is a solid mass • The liver has attenuation 40 HU
• The observation has greater attenuation than liver MRI (All of the following): •
The observation is a solid mass AND Compared to liver, the mass has any of the following:
• Less signal loss on OP compared to IP • Lower fat signal on fat-only images • Lower
fat fraction on fat-fraction maps • Less signal loss on fat-suppressed compared to
non-fat-suppressed images
