Mycosis fungoides is a low-grade lymphoma, but on reaching the tumor stage, it can cause cardiac tamponade owing to epicardial infiltration. Myocardial infiltration, even in the absence of abnormal imaging findings, requires attention because it can lead to arrhythmia and cardiac arrest.
Keywords: cardiac tamponade; mycosis fungoides.
© 2021 The Authors. Clinical Case Reports published by John Wiley & Sons Ltd.