This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous (Urinary Tract), Subject name: Pathology
Henoch schonlein purpura is associated with following deposits? 
Select and explain. 
A. Ig M, B. Ig A, C. IgD, D. IgE
B: Ig A
Answer: B: Ig A 
Explanation: Ans is 'b' i.e. IgA o There is deposion of IgA, sometimes with IgG and C3, in the mesangial region in HSRo IgA is deposited in the glomerular mesangium in a distribution similar to that of IgA nephropathy. This has led to the concept that IgA nephropathy and Henoch-Schonlein purpura are spectra of the same disease.