title: Accessory mitral leaflet: an uncommon form of subaortic stenosis.
abstract: Three-years-old boy presenting with a subvalvar aortic stenosis without a precise definition by echocardiography, where the surgical approach revealed an accessory mitral leaflet.
authors.affiliation: Hospital do Coração de Sergipe, Aracaju, SE, Brasil.
authors.forename: Marcos Alves
authors.initials: MA
authors.lastname: Pavione
authors.forename: José Teles de
authors.initials: JT
authors.lastname: Mendonça
authors.forename: Ivan Sérgio Espínola
authors.initials: IS
authors.lastname: Souza
authors.forename: Maria Amélia Fontes de Faria
authors.initials: MA
authors.lastname: Russo
mesh_terms: D001020:Aortic Stenosis, Subvalvular / Q000000981:diagnostic imaging / Q000601:surgery*; D002675:Child, Preschool; D006801:Humans; D008297:Male; D008943:Mitral Valve / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000601:surgery; D016896:Treatment Outcome; D014463:Ultrasonography