myocarditis , cardiac valvulitis , and lymphocytic or mixed interstitial infiltration of pancreas , renal , splenic , and hepatic hilar regions are seen in the early phase , but arteritis , typically of extraparenchymal arteries , is the most important aspect of mcls , hence the term infantile periarteritis nodosa , formerly applied to fatal cases of mcls .
C0027059
myocarditis
C0018787
cardiac