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. 2023 Jan 15;62(18):2693–2698. doi: 10.2169/internalmedicine.1283-22

Figure 1.

Figure 1.

Renal histological findings on light microscopy. A renal biopsy revealed the collapsing FSGS variant with concurrent endothelial damage. Periodic acid-methenamine-silver staining (PAM) revealed the following: (a) Focal segmental sclerotic lesion (yellow arrowheads). (b) Podocyte hyperplasia and endocapillary hypercellularity. (c) Hyalinosis (yellow arrowhead) and double contour (blue arrowheads). (d) Segmental collapsed capillary with podocyte hyperplasia. (a) Bars=100 μm; (b-d) Bars=50 μm.