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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 ...
Peptic ulcers are present in around 4% of the population. [1] New ulcers were found in around 87.4 million people worldwide during 2015. [5] About 10% of people develop a peptic ulcer at some point in their life. [9] Peptic ulcers resulted in 267,500 deaths in 2015, down from 327,000 in 1990.
Basal-cell carcinoma (BCC), also known as basal-cell cancer, basalioma [7] or rodent ulcer, [8] is the most common type of skin cancer. [2] It often appears as a painless raised area of skin, which may be shiny with small blood vessels running over it . [ 1 ]
Ulcerative colitis (UC) is one of the two types of inflammatory bowel disease (IBD), with the other type being Crohn's disease. [1] It is a long-term condition that results in inflammation and ulcers of the colon and rectum.
Classically, there is a solitary ulcer. But only 20% of patients have a single ulcer whereas in other cases there may be multiple lesions. [6] The size of the ulcers is usually 0.5–4 cm. [5] The lesion is most often located on the anterior (front) or lateral (side) rectal wall, centered on a rectal fold, [1] usually 10 cm from the anal verge. [8]
Callous ulcer is a chronic nonhealing ulcer with hard indurated base and inelastic margins. [1] It usually contains unhealthy pale granulation tissue . It may last for months to years and does not show any tendency to heal.
A chancre (/ ˈ ʃ æ ŋ k ər / SHANG-kər) [1] is a painless genital ulcer most commonly formed during the primary stage of syphilis. [2] This infectious lesion forms around 21 days after the initial exposure to Treponema pallidum, the gram-negative spirochaete bacterium causing syphilis, but can range from 10 to 90 days. [2]
Once the bacterium has been identified as the cause of the illness, treatment is often in the form of antibiotics and, where possible, drainage of the infected area. However, many strains of this bacterium have become antibiotic resistant ; for those with these kinds of infection, the body's own immune system is the only defense against the ...