A 56-year-old male patient who had a history of syncopal attack was diagnosed as having cardiac amyloidosis. His ECG finding showed a pattern of inferior and anteroseptal wall infarction with Wenckebach AV block.
Echocardiographic examination revealed that the LV posterior wall and interventricular septum were markedly thickened with granular sparkling.
We demonstrated the amyloid deposit in the myocardium by endomyocardial biopsy.
Pathology showed a green white birefringence by polarizing illumination and amyloid fibril in electron microscopic study.