Which term describes a dark, leathery scab?

The term that describes a dark, leathery scab is "eschar." Eschar refers specifically to the dead tissue that forms over a wound, particularly in cases where there is necrosis or significant tissue damage. This hardened layer can often appear black or dark brown and is typically associated with chronic wounds or burns.

Understanding eschar is crucial in the context of wound healing and tissue integrity, as it can affect the healing process. Proper assessment and management of eschar are necessary to promote healing, which may involve debridement or other interventions depending on the extent of the underlying tissue damage. This makes recognizing eschar an important skill for healthcare professionals concerned with tissue integrity and wound care.

In contrast, exudate refers to the fluid that leaks from blood vessels into surrounding tissues, indicating inflammation or infection. Crust refers to a dried serum or exudate that forms over a wound but doesn’t necessitate the same depth or hardness associated with eschar. Encrustation implies a buildup of crust or debris but is less specific and does not carry the same significance regarding tissue death as eschar does.