Pulmonary Limited MPO-ANCA Microscopic Polyangiitis and Idiopathic Lung Fibrosis in a Patient with a Diagnosis of IgA Nephropathy

Figure 1

Periodic acid-Schiff stained histologic preparation with an overview of the renal parenchyma. The glomerulus shows a cellular crescent. The glomerular tuft shows mesangial hypercellularity. Tubular cells are damaged with regenerative features (PAS, ×200).