Radiolucent

Category Descriptor Term Radiolucent Definition of Radiolucent Structure That Allows X Rays To Pass Through Appearing Dark On Radiograph Notes About Radiolucent Air And Soft Tissue Are Radiolucent Relative To Bone

Echogenicity

Category Descriptor Term Echogenicity Definition of Echogenicity Relative Brightness of Tissue on Ultrasound Compared With Reference Tissue Notes About Echogenicity Descriptors Include Anechoic, Hypoechoic, Isoechoic, Hyperechoic