Rapid progression of mitral stenosis during watchful waiting for the asymptomatic degenerative severe aortic stenosis: a case of caseous calcification of mitral annulus

Muddassir SM, Pressman GS. Mitral annular calcification as a cause of mitral valve gradients. Int J Cardiol. 2007;123:58–62. https://doi.org/10.1016/j.ijcard.2006.11.142. Deluca G, Correale M, Ieva R, Del Salvatore B, Gramenzi S, Di Biase M. The incidence and clinical course of caseous calcification of the mitral annulus: a prospective echocardiographic study. J Am Soc Echocardiogr. 2008;21:828–33. https://doi.org/10.1016/j.echo.2007.12.004. Harpaz D, Auerbach I, Vered Z, Motro M, Tobar A, Rosenblatt S. Caseous calcification of the mitral annulus: a neglected, unrecognized diagnosis. J Am Soc Echocardiogr. 2001;14:825–31. https://doi.org/10.1067/mje.2001.111877. Birkhoelzer SM, Thamman R. Caseous mitral annulus calcification: a rare complication of a common disease that needs recognition. JACC Case Rep. 2021;3:109–11. https://doi.org/10.1016/j.jaccas.2020.12.005.