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What Is The Rosacea Butterfly Or T Zone?


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The Classic Butterfly of Rosacea and the T - Zone

In discussing rosacea the 'butterfly' or T - Zone usually comes up.

Butterfly 
Here is a graphic of the classic butterfly in rosacea:

203px-Rasacee_couperose_zones.svg.png

Image - Wikipedia Commons

The facial butterfly is usually associated with rosacea but can also be found in lupus patients. "In the case of lupus, the butterfly or malar rash can appear on other parts of the body, aside from the face. For instance, it could appear on the arms, legs, or trunk." [1] 

"The prototypical butterfly-shaped skin lesion of SLE, which has also led many of the patient organizations to identify with the butterfly, has in essence retained its position over time. Defined as 'fixed erythema, flat or raised, over the malar eminences, tending to spare the nasolabial folds', it sometimes poses problems in differential diagnosis, mainly against rosacea and occasionally against dermatomyositis." [2] 

RRDi Logo
The RRDi uses the butterfly as part of its logo. 

rrdi_Logo100x100.png

What is the butterfly effect in rosacea?

T - Zone
The T - Zone can be clearly seen in this graphic:

TZONE.larger.jpg

Image - bellasugar.com [1]

End Notes

[1] Bel Marra Health

[2] Curr Rheumatol Rep. 2020; 22(6): 18.
New Criteria for Lupus
Martin Aringer, Nicolai Leuchten, Sindhu R. Johnson

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