38. 下列關於 IgA nephropathy 敘述何者不正確? (A) Henoch-Schonlein purpura is closely related to IgA nephropathy. (B) Immunofluoresence shows mesangial IgA deposits. (C) Patients have mild proteinuria but rarely crescent formation can be seen. (D) The disease commonly progresses to chronic renal failure in weeks without treatment. (E) May occur in any age of people but most commonly in older children and young adults.