The most common forms of cardiac amyloidosis are progressive, life threatening, and underrecognized. Symptoms affect a variety of organs and overlap with those of more common conditions, complicating and postponing diagnosis. Cardiac disease generally determines mortality, but noncardiac manifestations typically surface before cardiac symptoms, often several years before diagnosis. Familiarity with noncardiac manifestations may lead to early diagnosis, enabling treatment and improving prognosis.
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