title: Henoch Schonlein purpura presenting with pulmonary haemorrhage.
abstract: A young woman presented with arthralgia, a rash and dramatic haemoptysis, and renal involvement was indicated by proteinuria, haematuria and a rising serum creatinine. A systemic vasculitic disorder was suspected initially, but the diagnosis of Henoch-Schonlein purpura was established by the finding of mesangial IgA deposits on renal biopsy. Immunofluorescent study of renal biopsy material is vital to diagnosis where the clinical features of Henoch-Schonlein purpura and those of the systemic vasculitides with renal involvement prove to be indistinguishable.
mesh_terms: D000293:Adolescent; D005260:Female; D006470:Hemorrhage / Q000209:etiology*; D006801:Humans; D011695:IgA Vasculitis / Q000150:complications / Q000175:diagnosis*; D007668:Kidney / Q000473:pathology; D008171:Lung Diseases / Q000209:etiology*