부산대학교 도서관

As the aetiology of the retroperitoneal mass has not been evaluated in terms of whether it is idiopathic, IgG SB 4 sb -related or, as claimed, due to IgA vasculitis, by biopsy of the mass, it is speculative to make a direct relationship solely via a good response to steroid treatment. Kidney biopsy showed slight mesangial expansion with IgA deposition (Figure 1F), which confirmed the diagnosis of IgA vasculitis. Immunoglobulin A (IgA) vasculitis (formerly known as Henoch-Schönlein purpura) is a small-vessel vasculitis with IgA-dominant immune deposits that typically involves the skin, gut, and glomeruli, and is associated with arthralgia and/or arthritis ([1]). [Extracted from the article]