Fig. 1
From: Atypical hemolytic uremic syndrome precipitated by thyrotoxicosis: a case report
a Light microscopy showed mild segmental mesangial proliferation, while PASM staining showed focal segmental chain-ring change over glomerular basement membrane and tubular epithelial swelling with 5% interstitial edema. Immunofluorescent staining (× 400) showed that the tissue was IgG (−), IgA (−), IgM (+/−), C3 (−), C1q (−), and fibrinogen (−). b Electron microscopy (× 10,000) showed inner thin layer of glomerular capillary basement membrane thickening and endothelial swelling, without any electron dense deposits