Friday Pop Quiz 7/31/2026
A 29-year-old woman with Fitzpatrick skin type III presents with a history of recurrent erythematous plaques on her forearms after brief sun exposure, especially during the spring and early summer. She reports no systemic symptoms and no photosensitizing medications. Biopsy confirms findings consistent with polymorphous light eruption (PMLE). She wants a sunscreen that will minimize her flares …
A 29-year-old woman with Fitzpatrick skin type III presents with a history of recurrent erythematous plaques on her forearms after brief sun exposure, especially during the spring and early summer. She reports no systemic symptoms and no photosensitizing medications. Biopsy confirms findings consistent with polymorphous light eruption (PMLE). She wants a sunscreen that will minimize her flares … 
Histopathology can be rendered useless without good clinical information, according to Dr. Olayemi Sokumbi, a dermatologist and dermatopathologist with Mayo Clinic. Next Steps in Derm, in partnership with ODAC Dermatology, Aesthetic & Surgical Conference, interviewed Dr. Sokumbi about traps to avoid in challenging clinicopathologic scenarios. Learn how not to miss a diagnosis of dermatomyosit …