%0 Case Reports %T Cardiac Amyloidosis: The Importance of Surveillance in a Patient With an Initial Negative Cardiac Biopsy. %A Ananthakrishna R %A Lloyd R %A Kuss BJ %A Selvanayagam JB %J JACC Case Rep %V 2 %N 2 %D Feb 2020 %M 34317223 暂无%R 10.1016/j.jaccas.2019.11.041 %X Cardiac amyloidosis is a progressive disorder and is sometimes difficult to diagnose even when suspected in the appropriate clinical setting. We present an interesting case of rapidly progressive light-chain cardiac amyloidosis and highlights the importance of close monitoring even when the initial biopsy and imaging findings are not pathognomonic for amyloidosis. (Level of Difficulty: Beginner.).