A five-year-old boy is brought to the clinic for colicky abdominal pain that started four hours ago. He recently recovered from a case of Parvovirus B19 infection and had been doing well until today. The patient has no notable medical history aside from the Parvovirus infection and is not currently on any medications. Physical examination reveals a cropping of erythematous rashes bilaterally on the lower extremities. The joints in the knees and ankles are also swollen and tender to palpation. White blood cell count, hemoglobin, platelet count, and coagulation studies are normal. Urinalysis and serum creatinine are within normal limits. He is started on naproxen for pain control.
Which of the following is the most likely disorder affecting this patient?
- A) Cryoglobulinemia vasculitis
- B) Giant cell arteritis
- C) Granulomatosis with polyangiitis
- D) IgA vasculitis
- E) Kawasaki disease
Dr. Ted O'Connell