[Henoch-Schönlein purpura resulting in an obstructive bladder mass].

Henoch-Schönlein purpura (HSP) is the most common form of an immunological systemic vasculitis of childhood. The classic clinical symptoms include purpuric rash, abdominal pain, arthralgias, and haematuria, but the spectrum of HSP may vary to very rare forms. This article reports on an 8-year-old girl with a Henoch-Schönlein purpura (HSP) which resulted in an obstructive bladder mass and subsequent urinary retention. This is the first case reported in the literature, describing such a course.