<unk>  is a rare form of congenital heart disease.  It refers to a combination of congenital atrial septal defect, or even a patent foramen ovale (PFO) complicated by an acquired mitral stenosis.  The atrial septal defect is usually a specific type called a secundum atrial septal defect.  Iatrogenic<unk>  has also been reported.
Lutembacher's syndrome
Cruveilhier-Baumgarten syndrome
Werdnig-Hoffman disease
Wildervanck syndrome
Klüver-Bucy syndrome
Turcot syndrome
Aagenaes syndrome
Braun-Bayer syndrome