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Currently filtering by tag: Endocapillary foam cells

FSGS Tip Lesion

This biopsy is from a 35-year-old male with no significant medical history, who presents with sudden onset nephrotic syndrome. At presentation, the UPCR was 8.2 g/g and the serum albumin was 1.1 g/dl. Renal function was preserved (SCr 1.1 mg/dl). The biopsy shows frequent areas of segmental glomerulosclerosis (FSGS), associated with endocapillary foam cells and epithelial cell capping, predominantly involving the takeoff point of the proximal tubule (fig 1). Focally, the areas of segmental sclerosis herniate into the proximal tubule. Immunofluorescence is completely negative within the glomeruli, and electron microscopy (fig 2) shows diffuse epithelial foot process effacement. The findings...