What is an abscess?

An abscess is defined as a localized collection of pus that forms as a result of infection, typically caused by bacteria. The pus is composed of dead tissue, bacteria, and immune cells, and it can result in swelling, redness, and pain in the affected area. This collection of pus is usually surrounded by inflamed tissue, which helps to isolate the infection from the rest of the body. Recognizing this definition is critical in coding and diagnosing various medical conditions because abscesses can occur in numerous tissues and organs and may require specific treatment, including drainage and antibiotic therapy.

The characteristics of other options do not align with the definition of an abscess. For instance, the second option describes a lesion containing clear fluid, which more accurately refers to a blister or cyst rather than a pus-filled abscess. The third option refers to a closed sac that could contain various materials, encompassing a broader range of conditions like cysts or tumors, but not specifically an abscess. Finally, the fourth option describes a crack-like sore in the skin, which is indicative of a different issue such as a fissure or ulcer, and is unrelated to the pus accumulation seen in abscesses. Thus, the clear and precise definition of an abscess is captured