Light Chain Proximal Tubulopathy: Expanding the Pathologic Spectrum with and without Deposition of Crystalline Inclusions
Figure 1
(a) Eosinophilic cytoplasmic droplets in podocytes, mesangium and parietal cells, and PT cells. H&E, 600x. (b) PAS negative cytoplasmic droplets in proximal tubules. H&E, 200x. (c) Scattered distal and collecting tubules show focal segmental intracytoplasmic eosinophilic droplets, H&E, 200x. Red arrow: distal tubule with droplets; black arrow: interstitial cell with droplets. (d) Intracytoplasmic droplets in tubules are bright pink with Masson trichrome stain, 200x.
