Unusual presentation of Henöch-Schonlein purpura.

We present a rare case of a 4-year-old boy with newly diagnosed Henöch-Schonlein purpura (HSP) affecting the scrotum and penis. The patient presented to the emergency department with palpable purpura symmetrically distributed over the lower limbs. This was associated with arthritis of the right knee, abdominal pain and scrotal swelling.