Capillary sclerosis of the urinary tract and analgesic nephropathy.

  title={Capillary sclerosis of the urinary tract and analgesic nephropathy.},
  author={Michael J{\"o}rg Mihatsch and H. O. Hofer and Fred G. Gudat and C Kn{\"u}sli and Joachim Torhorst and Hans Ulrich Zollinger},
  journal={Clinical nephrology},
  volume={20 6},
Morphology, frequency and significance of capillary sclerosis (CS) in the ureter and electron microscopic findings in early papillary necrosis are described. CS of the urinary tract is characterized by a thickening of the basement membrane of capillaries lying just underneath the urothelium. The basement membrane changes can be demonstrated by PAS, Sudan stain and autofluorescence with equal reliability. By electron microscopy the thickened basement membranes exhibit a tree ring like pattern… CONTINUE READING