Fig. 1From: Nephrotic syndrome with acute kidney injury due to combination therapy of immune checkpoint inhibitors: a case report and review of the literatureKidney biopsy findings. (a) Periodic acid Schiff (PAS) staining did not show focal sclerosis or increase in mesangial matrix or cellularity. Bar = 50 μm. (b) Masson-Trichrome (MT) staining showed medial hypertrophy and fibroblastic intimal thickening (arrows) of the arch arteries. Bar = 100 μm. (c) Representative electron micrograph obtained from a kidney biopsy. Extensive podocyte foot process fusion was revealed (arrows), without any electron-dense deposits. Bar = 2 μmBack to article page