Primary Care Dermatology Module
Nomenclature of Skin Lesions

Developed by Gary Williams, M.D. and Murray Katcher, M.D. Ph.D, Department of Pediatrics
with funding and support from the Wisconsin Area Health Education Center (AHEC) System

University of Wisconsin

Tutorial B: The Secondary Lesions


Secondary lesions may evolve from primary lesions, or may be caused by external forces such as scratching, trauma, infection, or the healing process. The distinction between a primary and secondary lesion is not always clear.

16. EROSION

Erosions are slightly depressed areas of skin in which part or all of the epidermis has been lost.

Erosion Erosion

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