Diagnostic approach to scrotal swelling without pain in children and adolescents

IgA: immunoglobulin A; HSP: Henoch-Schönlein purpura.
* In patients with IgA vasculitis, palpable purpura without thrombocytopenia or coagulopathy is the most common presenting feature. Other findings include joint pain, abdominal pain, and renal disease. Refer to UpToDate topics on IgA vasculitis (Henoch-Schönlein purpura).
¶ In addition to rash, patients with Kawasaki disease typically have 3 or more of the following: high fever of >4 days duration, bilateral bulbar conjunctival injection with perilimbic swelling, oral mucous membrane changes, peripheral extremity changes (eg, erythema of the palms and soles and/or swelling of the hands and feet), or cervical lymphadenopathy with at least one node >1.5 cm in diameter. Refer to UpToDate topics on Kawasaki disease.