Northside Health Library Ulcers
An ulcer is a crater-like lesion on the skin or
mucous membrane of the mouth, stomach, and other body areas.
Ulcers can be caused by inflammation or infection. Some ulcers may be caused by a cancer.
Habif TM. Principles of diagnosis and anatomy. In: Habif TP, ed.
Clinical Dermatology. 5th ed. Philadelphia, Pa: Mosby Elsevier; 2009:chap 1.
Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington, School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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