Preferred Label : hypoechoic;
RADLEX synonyms : hypoechogenic; homogeneous low level echoes; dark;
Definition : BI-RADS US: defined relative to subcutaneous fat; less echogenic than fat; characterized
by low-level echoes throughout (e.g. complicated cysts or fibroadenomas). [TI-RADS}:
Decreased echogenicity relative to thyroid tissue. [LI-RADS] Echogenicity less than
background liver.;
Source : BI-RADS 5, BI-RADS 4, TI-RADS, LI-RADS 2020;
Origin ID : RID6046;
Member of
BI-RADS US: defined relative to subcutaneous fat; less echogenic than fat; characterized
by low-level echoes throughout (e.g. complicated cysts or fibroadenomas). [TI-RADS}:
Decreased echogenicity relative to thyroid tissue. [LI-RADS] Echogenicity less than
background liver.
