01.03.02 – Isomerism of right atrial appendages

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IPCCC Term ISOMERISM OF RIGHT ATRIAL APPENDAGES

IPCCC Code 01.03.02

ICD-11 Code PENDING

Synonyms PENDING

Abbreviations PENDING

IPCCC Definition A congenital cardiac malformation in which both atrial appendages have the morphology of a right atrial appendage.

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01-03-02 This view of the base of the heart demonstrates bilateral morphologically right atrial appendages. The pectinate muscles encircle the common atrioventricular junction on both sides, meeting at the crux. Note that a tongue of leaflet tissue joins together the bridging leaflets of the common valve, producing separate valvar orifice for the right and left ventricles.

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