Crescents

A segmental (left, black arrow) and circumferential crescent (right) in a patient with IgA nephropathy. Images courtesy of Patrick Walker, MD.

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IgA nephropathy

IgA nephropathy with crescents. Note the fibrocellular crescent present in this glomerulus extending from the 3 o’clock the 12 o’clock position. Though difficult to appreciate in this image, there is…

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