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Anomalous insertion of the superior or the inferior vena cava into the right atrium
1Department of Radiology, Mie University School of Medicine, 2-174 Edobashi, Tsu, Mie 514, Japan.
Insights
Rare congenital anomalies of the vena cava connecting to the right atrium were observed in three patients. These included low superior vena cava insertion in an adult and high inferior vena cava insertion in infants with complex heart issues.
Area of Science:
- Cardiology
- Congenital Heart Disease
- Vascular Anatomy
Background:
- Congenital anomalies of the great veins, specifically the superior vena cava (SVC) and inferior vena cava (IVC), connecting to the right atrium are infrequently encountered.
- Understanding these rare variations is crucial for accurate diagnosis and management in pediatric and adult cardiology.
Observation:
- This report details three distinct cases of anomalous venous connections to the right atrium.
- Case 1 involved a 25-year-old healthy male with a low-insertion right SVC anomaly.
- Cases 2 and 3 presented infants with complex cardiac anomalies and high-insertion IVC anomalies.
Findings:
- Angiographic and computed tomographic (CT) imaging were utilized to delineate the anomalous venous pathways.
- The findings confirmed the unusual anatomical connections of the SVC and IVC to the right atrium in all three cases.
- Specific details of the anomalous insertions were visualized and documented through advanced imaging modalities.
Implications:
- Accurate identification of these rare vena cava anomalies through imaging is essential for surgical planning and patient care.
- Recognition of these variations can prevent misdiagnosis and guide appropriate interventions in patients with congenital heart disease.
- This case series contributes to the limited literature on anomalous vena cava connections, highlighting the importance of detailed anatomical assessment.
Abstract:
Three cases with anomalous insertion of the superior or inferior vena cava into the right atrium are presented. One case was a 25-year-old healthy man with anomalous low insertion of the right superior vena cava into the right atrium. The remaining two cases were infants with complex cardiac anomalies showing anomalous high insertion of the inferior vena cava into the right atrium. The congenital anomalies of the connection between the superior and the inferior vena cava and the right atrium are rare. Angiographic and computed tomographic findings of these anomalies were reported.