AV block and DCM – Cardiology MCQ

AV block in the presence of features of dilated cardiomyopathy (DCM), may indicate:
a) Sarcoidosis
b) Lyme disease
c) Myotonic dystrophy
d) All of the above
e) None of the above
Correct answer: d) All of the above
Other conditions associated with this combination are lamin A/C mutation and giant cell myocarditis.
Reference

1. Japp AG et al.The Diagnosis and Evaluation of Dilated Cardiomyopathy. J Am Coll Cardiol. 2016;67(25):2996-3010.