Renal amyloidosis Renal interstitial amyloid deposits Renal interstitial amyloid deposition Renal interstitial amyloid Deposition of amyloid in the interstitial tissue of the kidney. Amyloid is is made up of 10 nm (on average) fibrils that are most commonly composed of monoclonal light chains (AL), transthyretin (TTR), amd LECT2, or occur in the setting of long standing systemic inflammation. Renal interstitial amyloidosis Renal interstitial deposits