Caseous mitral valve calcification and concurrent hypertrophic obstructive cardiomyopathy: A rare cause of stroke

摘要

Mitral annulus calcification (MAC) is a relatively common con- dition with a prevalence of about 14%, often seen at old age and results from degenerative changes in the mitral valve fibrous skeleton [1]. An exceedingly rare and adverse variant of MAC is the caseous calcification of the mitral annulus (CCMA), which accounts for only 0.6% of all MAC cases [2]. It can be easily con- fused with tumors, vegetations, or cysts; thus, often underdiag- nosed and mistreated. CCMA in association with other comorbidities can potentially increase the risk of cerebrovascular accidents (CVA). Here, we present the first case of CCMA with con- comitant hypertrophic obstructive cardiomyopathy (HOCM) pre- senting with cardioembolic stroke complicated by hemorrhagic conversion.