Abstract
Amyloid deposition in the myocardium can cause clinically significant heart failure, which is very difficult to diagnose. The present case reported presented a patient with heart failure, with suspected cause of cardiac amyloidosis, but abdominal fat pad and endomyocardial with Congo red stain biopsies were negative. Due to high suspicion of cardiac amyloidosis, a technetium-99m pyrophosphate (Tc-99m PYP) heart scan was done, which was revealed as strongly suggestive for cardiac transthyretin amyloidosis. So, the patient was sent for genetic testing, and a TTR gene mutation [c.148G>A (p.Val50Met)] was found. Keywords: Cardiac amyloidosis; Endomyocardial biopsy (EMB); Technetium-99m pyrophosphate (Tc-99m PYP) heart scan; Transthyretin amyloidosis (TTR)
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