chronic ulcer of skin where the ulcer is an ulceration of tissue deprived of adequate blood supply by prolonged pressure
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via PubMed
Stage IV pressure ulcer caused by prolonged decubitus, exposing the gluteus medius muscle attached to the iliac crest
Pressure ulcers, also known as pressure sores, bed sores or pressure injuries, are localised damage to the skin and/or underlying tissue that usually occur over a bony prominence as a result of usually long-term pressure, or pressure in combination with shear or friction. The most common sites are the skin overlying the sacrum, coccyx, heels, and hips, though other sites can be affected, such as the elbows, knees, ankles, back of shoulders, or the back of the cranium.
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