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 C: Patterns and Distribution

Not only is the appearance of lesions important, but the pattern and distribution on the skin is as well.


The term "morbilliform" means that the patient has a rash that looks like measles. Patients with measles will have the rash but patients with Kawasaki disease, drug reactions, or other conditions may also have a morbilliform rash. The rash consists of macular lesions that are red and are usually 2-10 mm in diameter but may be confluent in places.

Morbilliform Morbilliform

Click on each image for further information.

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