Published: Apr 05, 2026 Category Social Media Source https://www.facebook.com/amyloidosisfdn/photos/hereditary-transthyretin-amyloidosis-with-polyneuropathy-hattr-pn-also-known-as-/1250269130603756/ Details Hereditary transthyretin amyloidosis with polyneuropathy (hATTR-PN), also known as familial amyloid polyneuropathy, is a rare inherited condition that damages peripheral nerves due to the buildup of misfolded TTR proteins.