Sunken : Ulcer
A circumscribed loss of the epidermis and at least the upper dermis. Ulcers are further classified by depth, border/shape, edge, and tissue at base.
Ulcer of disseminated herpes infection in an immunocompromised patient
Diabetic ulcer on the plantar foot
Deep stage IV pressure ulcer in the sacral region
Large ulcer in pyoderma gangrenosum