Renal biopsy may be helpful in the diagnosis of<unk><unk> .
Lupus nephritis other diagnostic studies
Rapidly progressive glomerulonephritis other diagnostic studies
Cryoglobulinemia other diagnostic studies
C4 glomerulopathy other diagnostic studies
Membranous glomerulonephritis other diagnostic studies
Renal amyloidosis other diagnostic studies
Thin basement membrane disease other diagnostic studies
Henoch-Schönlein purpura other diagnostic studies