Summary
Eruptive disseminated porokeratosis (EDP) is a disease that presents clinically with sudden onset of erythematous papules and plaques, with a ridge‐like border histologically represented by a cornoid lamella. We report a case of EDP occurring in a 39‐year‐old woman 3 days after completion of a 2‐week course of oral corticosteroid therapy for an acute asthma exacerbation. The patient was treated with emollients and sun protection. Unlike the more chronic disseminated superficial (actinic) porokeratosis, EDP secondary to immunosuppression from corticosteroid therapy has very rarely been reported in the dermatological literature.
A pediatric patient with a recent history of impetigo involving the dorsal aspect of the foot presented with a tense, fluid-filled, asymptomatic bulla encircling the right fourth toe that had developed rapidly, over the course of a single day (Figure). A clinical diagnosis of blistering distal dactylitis was made. A seropurulent exudate was noted at incision and drainage, and culture yielded methicillinsensitive Staphylococcus aureus. The patient was treated with a 10-day course of oral cephalexin, 300 mg twice daily, with complete resolution by 2-week follow-up.Blistering distal dactylitis is an unusual superficial infection typically localized to the volar surface of the distal phalanx. 1 However, as this case illustrates, the blister can cover the entire digit. Di-
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