Tinea versicolor macules should have scale or flake (furfuraceous scale), which can be distinguished at the border of the lesion. It can be diagnosed via the “fluff test” or “stretch test”. To perform this, push down and stretch around the lesion in all directions with both index fingers, like zooming in on a smartphone, to fluff/puff up the lesion. The KOH test (showing ‘spaghetti and meatballs’ of the Malassezia globosa or M. furfur) can also be done but is now largely only used for teaching purposes per Dr. Pasieka.

This is a supplement to The Curbsiders podcast:

#285 Common Skin Complaints in Primary Care (Dermsiders)
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Tinea Versicolor, Pruritus, and Oh So Many Trunk and Extremity Complaints with Dr. Helena Pasieka

Producers: Maddie “Mad Dog” Morgan, Edison Jyang
Infographic and Cover Art: Edison Jyang
Writer: Beth Garbs Garbitelli
Hosts: Matthew Watto MD, FACP; Paul Williams MD, FACP
Reviewer: Emi Okamoto MD, FACP
Editor: Emi Okamoto MD, FACP (written materials); Clair Morgan of nodderly.com
Guest: Dr. Helena Pasieka

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