Congenital mitral regurgitation from absence of the anterolateral papillary muscle.
Hashimoto K, Oshiumi M, Takakura H, Sasaki T, Onoguchi K.
Ann Thorac Surg. 2001 Oct;72(4):1386-7. doi: 10.1016/s0003-4975(00)02475-9.
PMID:11603474
Congenital absence of posteromedial papillary muscle and anterior mitral leaflet chordae: the use of three-dimensional echocardiography and approach in complex pediatric mitral valve disease.