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An ulcer is a discontinuity or break in a bodily membrane that impedes normal function of the affected organ.According to Robbins's pathology, "ulcer is the breach of the continuity of skin, epithelium or mucous membrane caused by sloughing out of inflamed necrotic tissue."
An ulcer is a sore on the skin or a mucous membrane, accompanied by the disintegration of tissue. Ulcers can result in complete loss of the epidermis and often portions of the dermis and even subcutaneous fat. Ulcers are most common on the skin of the lower extremities and in the gastrointestinal tract. An ulcer that appears on the skin is ...
Venous ulcer is defined by the American Venous Forum as "a full-thickness defect of skin, most frequently in the ankle region, that fails to heal spontaneously and is sustained by chronic venous disease, based on venous duplex ultrasound testing."
Chronic wounds mostly affect people over the age of 60. [14] The incidence is 0.78% of the population and the prevalence ranges from 0.18 to 0.32%. [18] As the population ages, the number of chronic wounds is expected to rise. [30] Ulcers that heal within 12 weeks are usually classified as acute, and longer-lasting ones as chronic.
Wound location: Very useful consideration in many chronic wounds, such as diabetic foot ulcers, pressure ulcers, and venous ulcers. Acute wounds will be located in areas consistent with the mechanism of injury (e.g. diagonal chest wall bruising from seatbelt following car accident).
Pressure ulcers can trigger other ailments, cause considerable suffering, and can be expensive to treat. Some complications include autonomic dysreflexia, bladder distension, bone infection, pyarthrosis, sepsis, amyloidosis, anemia, urethral fistula, gangrene and very rarely malignant transformation (Marjolin's ulcer – secondary carcinomas in chronic wounds).
Diagramatic representation of mucosal erosion (left), excoriation (center), and ulceration (right) Simplistic representation of the life cycle of mouth ulcers. An ulcer (/ ˈ ʌ l s ər /; from Latin ulcus, "ulcer, sore") [2] is a break in the skin or mucous membrane with loss of surface tissue and the disintegration and necrosis of epithelial tissue. [3]
Ulcer: An ulcer is a discontinuity of the skin exhibiting complete loss of the epidermis and often portions of the dermis. [32] [33] Fissure is a lesion in the skin that is usually narrow but deep. [29] [33] Induration is dermal thickening causing the cutaneous surface to feel thicker and firmer. [29]