American Urological Association - Intimal Fibroplasia
- Least common form of the dysplasias (<1%)
- Adult and childhood forms have been described.
- Histology: Circumferential or eccentric accumulation of loose moderately cellular fibrous tissue inside (internal elastic lamina) without lipid or inflammation, expanding the intima (image A) and (image B).
- Arteries of limbs and GI tract may show similar changes.
- Occurs in the more distal branches of the renal artery
- May be associated clinically with chronic pyelonephritis and end-stage renal disease