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.


Scarlatiniform rashes have the pattern of scarlet fever. The patient with a scarlatiniform rash has innumerable small red papules that are widely and diffusely distributed. Note that the term scarlatiniform does not mean that the patient has scarlet fever, although by definition all patients with scarlet fever have a scarlatiniform rash. Patients with a variety of other conditions such as Kawasaki disease, viral infections, or drug reactions may have rashes with the same pattern.

Scarlatiniform Scarlatiniform Scarlatiniform

Click on each image for further information.

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