Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Sirius red staining of left atrial tissue showing high grade isolated atrial amyloidosis (x4) (upper panel). Immunostaining of left atrial tissue in a patient with isolated atrial amyloidosis demonstrating the presence of atrial natriuretic peptide (x4) (lower panel). Reprinted with permission of Ariyarajah et al.23
