Histopathology of the decubitus ulcer.
The histologic studies of the decubitus ulcer spectrum, which include blanchable erythema, nonblanchable erythema, decubitus dermatitis, decubitus ulcer, and the black eschar/gangrene reveal a dynamic process. The initial change occurs in the vessels of the papillary dermis. This is followed by necrosis of skin structures. The eschar/gangrene represents a full-thickness defect due either to prolonged ischemia and anoxemia or a sudden large vessel occlusion caused by shearing injury.
D000328:Adult; D000368:Aged; D001706:Biopsy; D002908:Chronic Disease; D003872:Dermatitis / Q000473:pathology; D004890:Erythema / Q000473:pathology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D003668:Pressure Ulcer / Q000473:pathology*; D012867:Skin / Q000473:pathology*; D014945:Wound Healing