What is an intrarenal abscess?

An intrarenal abscess refers specifically to a localized collection of pus that occurs within the tissue of the kidney itself. This condition typically arises as a complication of a renal infection, where bacteria enter the kidney, leading to an inflammatory response and the subsequent formation of an abscess. The presence of an intrarenal abscess can cause significant pain, fever, and other systemic symptoms, necessitating prompt medical attention.

In contrast, the other options describe different conditions. An infection in the bladder relates to a urinary tract infection (UTI) and does not specifically involve kidney tissue. A type of kidney stone refers to solid aggregates of minerals or salts that form within the kidney and are not directly associated with an abscess. A systemic infection implies an infection that spreads throughout the body, rather than being localized to the kidney tissue. Thus, the definition of an intrarenal abscess as a pocket of infection within kidney tissue accurately captures its clinical significance and pathology.