A three-year-old male presented to the emergency room with a 1-week history of cutaneous lesions. He presented with pharyngitis and was treated with amoxicillin.
In the last 12 hours, he reported the appearance of vesiculobullous lesions and arthralgias in both ankles, which prevented him from walking.
On physical examination, palpable purpuric lesions located in walls, buttocks, elbows and dorsum of the hands are highlighted, accompanied by blisters of contents that are hemorrhagic.
Painful swelling was also observed in the dorsal aspect of the left hand, feet and ankles, and hyperemia with non exudates.
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Complementary examinations (pathogram, biochemistry, coagulation and urine dipstick) were normal.
With the diagnosis of suspected HSP with systemic involvement, the patient was hospitalized to start steroid treatment (prednisone 2 mg/kg/day).
The evolution was favorable, with improvement of joint symptoms, being discharged 24 hours after hospitalization.
