Ulcer
A break on the skin or on the surface of an organ.
An ulcer forms when the surface cells die and are cast off.
Ulcers my be associated with cancer and other diseases.

Ulceration
The formation of a break on the skin or on the surface of an organ.
An ulcer forms when the surface cells die and are cast off.
Ulcers may be associated with cancer and other diseases.

Ulcerative Colitis
Chronic inflammation of the colon that produces ulcers in its lining.
This condition is marked by abdominal pain, cramps, and loose discharges of pus, blood, and mucus from the bowel.

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