Figure 1.
Kidney biopsy findings: (A) Global glomerular basement membrane thickening (Masson’s Trichrome, 400×). (B) Glomerular characteristic deposits forming “spikes” and “chain links” figures (periodic acid methenamine, 1,000×). (C) PLA2R immunohistochemical stain revealing no immunoreactivity (400×). (D) Some glomeruli show weak and segmental staining for thyroglobulin along the glomerular capillary (200×).