Fast Five Quiz: Presentation and Diagnosis of Hereditary (Familial) Amyloid Transthyretin-Related (hATTR) Amyloidosis

Jefferson R. Roberts, MD


July 11, 2019

More than 95% of TTR is produced by the liver. Additional TTR is produced by the choroid plexus of the brain and the retinal pigment epithelium. TTR is not produced by the kidneys. It can also be found in plasma and in cerebrospinal fluid.

Learn more about the pathophysiology of ATTR.


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