PMC4410589_01
MRI study of the abdomen revealed bilateral hydronephrosis due to severe stenosis of both right and left ureters at the pelvic-ureteral junction level (arrows).
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F1
An MRI study revealed bilateral hydronephrosis with focal stenosis of the right ureter at the pelvic-ureteral junction (fig. 1).
a Diffuse crescentic glomerulonephritis with large circumferential cellular crescents and severe compression of the glomerular tuft (periodic acid-Schiff stain; magnification x200). b Direct immunofluorescence staining shows linear glomerular basement membrane deposits of IgG (magnification x400).
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F2
Renal biopsy specimens revealed over 90% of glomeruli presenting with exuberant circumferential cellular crescents and the compression of the underlying tuft (fig. 2a). Immunofluorescent findings revealed intense and diffuse linear deposits of IgG and C3 (data not shown) along with GBM (fig. 2b).
PMC4410589_02