title: Cor polyatriatum: a very rare and original variant of cor triatriatum.
abstract: Cor triatriatum sinister is a rare congenital heart defect in which the left atrium is classically partitioned into a proximal and distal chamber by a fibromuscular membrane. The proximal chamber receives blood from the pulmonary venous circulation and communicates with the distal chamber through fenestrations in the membrane. A trans-membrane blood flow obstruction can lead to pseudo-mitral stenosis or pulmonary venous hypertension, among other clinical pathways. Herein, we report the first case in the literature of 'cor polyatriatum', where a primary fibromuscular membrane along with two additional branching membranes leads to a total of five atrial chambers.
authors.forename: Nicholas J
authors.initials: NJ
authors.lastname: Farber
authors.forename: Robert W W
authors.initials: RW
authors.lastname: Biederman
mesh_terms: D000328:Adult; D003310:Cor Triatriatum / Q000175:diagnosis* / Q000473:pathology; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D035583:Rare Diseases / Q000175:diagnosis* / Q000235:genetics / Q000473:pathology