Immunoglobulin A vasculitis (IgAV), formerly Henoch-Schönlein purpura, involves the small vessels of the joints, kidneys, gastrointestinal tract, and skin. IgAV can also affect the central nervous system and the lungs; however, these findings are rare.

The clinical association of purpura, arthralgia, and arthritis was first described in 1837 in a publication by Johann Lukas Schönlein, a German physician. In 1874, Eduard Henoch, a student of Schönlein, reported cases of children with purpura, abdominal

Background Henoch-Schönlein purpura (HSP), a leukocytoclastic small vessel vasculitis, exhibits both cutaneous and systemic manifestations. While predominantly observed in childhood, it may manifest in adults with more pronounced systemic involvement.