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Start free with EleplanPersistent left superior vena cava connecting through coronary sinus to left-sided atrium
ORPHA:99109Morphological anomaly
Also called Persistent left SVC connecting through coronary sinus to left-sided atrium
What it is
A rare, congenital vascular malformation of the major vessels characterized by a persitent left superior vena cava which drains through the left coronary sinus to the left atrium. Patients are usually asymptomatic and discovered incidentally, however hypoxia, cyanosis, murmurs, palpitations, cardiac structural anomalies (e.g. atrial septal defect, bicuspid aortic valve, cor triatriatum) and risk of paradoxical embolism may be associated.
Key facts
- Classified as
- Morphological anomaly
ICD-10 codes
ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.
Cross-references
Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.
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