Cardiac Amyloidosis Associated with Multiple Myeloma, Revealed by Heart Failure with Preserved Ejection Fraction in A 56-Year-Old Man: Case Report

We report the case of a 56-year-old man with cardiovascular risk factors, including statin-treated dyslipidemia and long-standing smoking, who presented with acute decompensated heart failure. Clinical, biological, immunohistological and imaging examinations led to the diagnosis of cardiac amyloidosis, a frequently underdiagnosed cause of heart failure with preserved ejection fraction, and multiple myeloma requiring multidisciplinary management.