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Cor Triatriatum

A malformation of the heart in which the embryonic common PULMONARY VEIN was not incorporated into the LEFT ATRIUM leaving behind a perforated fibromuscular membrane bisecting the left atrium, a three-atrium heart. The opening between the two left atrium sections determines the degree of obstruction to pulmonary venous return, pulmonary venous and pulmonary arterial hypertension.

Year introduced: 1987

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Subheadings:

Tree Number(s): C14.240.400.200, C14.280.400.200, C16.131.240.400.200

MeSH Unique ID: D003310

Entry Terms:

  • Cor Triatriatum Sinistrum
  • Subdivided Left Atrium
  • Atriums, Subdivided Left
  • Atrium, Subdivided Left
  • Left Atriums, Subdivided
  • Left Atrium, Subdivided
  • Subdivided Left Atriums
  • Triatrial Heart
  • Hearts, Triatrial
  • Heart, Triatrial
  • Triatrial Hearts

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