Each tissue type, such as liver, spleen or kidney, has a particular echogenicity in its normal state. In diseased states, the echogenicity of an organ can be altered, either more echogenic (hyperechoic) or less echogenic (hypoechoic) than usual.
burn up. v. 1. To destroy something or someone by fire or heat: She burned the contract up. He burned up all the photographs. 2. To be completely destroyed by fire or heat: The cabin burned up, leaving only ashes.
These verbs mean to injure or alter by means of intense heat or flames. Burn, the most general, applies to the effects of exposure to a source of heat or to something that can produce a similar effect: burned the muffins in the oven; skin burned by the wind and sun.