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.
burn out. 1. long term physical and mental exhaustion associated with a task (usually monotonous/repetitive tasks or one's careers). 2. a person who has smoked so much marijuana that they appear slow, sluggish, and stupid. 3. the temporary unpleasant, sluggish feeling after the high from marijuana wears off. 1. Driving the bus the same route every day has burned me out. 2.