Incidental finding of left-sided superior vena cava: A case report and comprehensive literature review.

Introduction And Importance: Persistent left superior vena cava (PLSVC) is a rare vascular anomaly that affects systemic venous circulation. PLSVC typically is asymptomatic as the return of venous blood to the right atrium occurs through the coronary sinus. It is important to possess a comprehensive understanding of drainage as it can present challenges in catheter placement on the right side of the heart, aiming to prevent potential complications.