Fig. 1
From: Focal segmental glomerulosclerosis: molecular genetics and targeted therapies
Histopathological FSGS variants. a Adhesion of the capillary loops to Bowman’s capsule is thought of as a nidus for segmental sclerosis and an early stage of FSGS (Trichrome). b FSGS with amorphous (hyaline) deposits (Periodic acid–Schiff). c Segmental consolidation (<50 %) of the glomerulus is typical of FSGS NOS (Periodic acid–Schiff). d Collapsing FSGS is characterized by segmental (or global) proliferation of podocytes and segmental (or global) implosion of the capillary loops (Jones Methenamine Silver)