Can you identify this axillary rash?

February 17, 2011

For 3 weeks, a 28-year-old man has had a pruritic, bilateral axillary rash. He stopped using deodorant, but the condition has not improved.

Case 4:
For 3 weeks, a 28-year-old man has had a pruritic, bilateral axillary rash. He stopped using deodorant, but the condition has not improved. The patient takes no medication and is otherwise healthy, although he reports having had a mild upper respiratory tract disorder that did not require treatment about a month earlier.

 

 

(Answer on next page.)

 

Case 4: Inverse pityriasis rosea

The development of oval-shaped lesions following an upper respiratory tract infection points to the diagnosis of inverse pityriasis rosea, D-a condition in which pityriasis rosea is confined primarily to the axillary vaults, sometimes including the groin area and generally sparing the trunk.

The other conditions in the differential-contact dermatitis, candidiasis, seborrheic dermatitis, and psoriasis-are characterized by confluent rather than multiple discrete lesions.

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