Case presentation A 48-year-old woman comes to your clinic with a three-week history of pruritic erythema on the dorsal aspect of her forearms, hands, and feet. Physical examination Upon examination, you observe that the eruption is hyperkeratotic, sharply marginated, and hyperpigmented. A bilateral ankle and foot edema had prevailed by tense bullae within the past 24 hours.

Upon further examination, you notice that the eruption is photodistributed as there is no rash on any other area of her skin. Medical history The overall condition of the woman is normal. Asking about the complication of any major surgeries, the woman explains that she underwent gastric sleeve surgery three months ago.