Table 1.

Common ultrasound terminology

Term	Definition
Echogenicity	Echogenicity refers to a tissue's ability to produce echoes and the resultant characteristic shade of gray it produces on a scale from black to white.
Anechoic	Tissues that are anechoic do not produce echoes and appear black. Fluids, such as urine and blood, are anechoic.
Hyperechoic (echogenic)	Tissues that reflect ultrasound waves strongly are hyperechoic or echogenic, and appear light gray to white.
Hypoechoic	Weaker echo-producing tissues, appearing a darker shade of gray on the grayscale.