This papulosquamous eruption is most common in young adults. A single oval patch is generally noted several days before a more generalized, fawn-colored rash erupts. This rash is most prevalent on the trunk, and the proximal upper and lower extremities. The rash spontaneously disappears over 5 to 6 weeks. The diagnosis is:
- pityriasis rosea
- tinea corporis
- psoriasis
- atopic dermatitis
- sporotrichosis
Answer: A
Pityriasis rosea
This is the classic presentation of pityriasis rosea. Remember that the differential diagnosis includes secondary syphilis, so if there is a positive sexual history - consider ordering a VDRL/RPR. The "herald" patch which is described is pathognomonic for pityriasis.
Pityriasis rosea is covered in the NCCPA™ Content Blueprint Dermatology (5%)
Note: * This is part of the Daily PANCE and PANRE in your inbox email series: 60 days of PANCE and PANRE Questions and Answers delivered directly to your inbox. It is a great and fun way to learn! If you haven't already, you can sign up for FREE by clicking Here.