Monday, February 20, 2012


A few days after a young child gets a sore throat, he develops a diffuse blanching erythema with numerous small papules starting at the head and neck, then involving the trunk and extremities, before having the appearance shown in the first image. The rash feels like sandpaper and is easiest to see along the inguinal crease, axillary fold, and antecubital fossa.

Challenge: What's your diagnosis?

First image shown under Fair Use. Second image shown under Creative Commons Attribution Share-Alike License.


jbwpac said...

strep throat resulying in Scarletina

Craig Chen said...

i like it!

A was the scarlet letter. This is scarlet fever; the first image shows the desquamating rash, and the second image shows the classic strawberry tongue. Scarlet fever is a delayed type skin reactivity to Streptococcus pyogenes.

Sources: UpToDate; Wikipedia.