Ulcers & Gastritis
Ulcers are healing wounds that develop on the skin, mucous membranes, or eye. Although they have many causes, they are marked by:
The word ulcer is first attested from ca. 1400 CE, deriving from Old French ulcere, which came from Latin ulcus "ulcer", ultimately from the Proto-Indo-European base *elk-es- "wound".[1]
An ulcer is a discontinuity of the skin exhibiting complete loss of the epidermis and often portions of the dermis and even subcutaeous fat.[2]
The article above is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Ulcer".