• Nicola Tamburini, Irene Marchi, Matteo Bassi, Gabriele Anania, Francesco Quarantotto, Giorgio Cavallesco, and Pio Maniscalco.
• Department of Morfology, Experimental Medicine and Surgery, Section of General and Thoracic Surgery, Sant'Anna Hospital, University of Ferrara, Ferrara, Italy.
• J Thorac Dis. 2017 Aug 1; 9 (8): E723-E726.

AbstractA partial anomalous pulmonary venous connection (PAPVC) is a rare congenital defect in which at least one pulmonary vein doesn't drain into the left atrium but into a systemic vein or even into the right atrium, causing a left-to right shunt. PAPVC with a small amount of shunt are usually asymptomatic, and can not be detected during lifetime. Nevertheless, if those patients undergo a major lung resection, the surgical procedure could precipitate right heart failure if this anomalous shunt remains uncorrected. Therefore, it is considered to be very important preoperative diagnosis. In case report, we present a case of a 54-year-old woman with a right upper lobe non-small cell lung cancer and previous history of left lung resection for tuberculosis. During surgery, an anomalous pulmonary vein branch draining into the superior vena cava was incidentally detected. The abnormality was diagnosed as a PAPVC. A right upper open lobectomy was performed. The anomaly was corrected and the surgery was successful without postoperative complications. Surgeons should be aware of this rare anomaly and carefully evaluate preoperative images CT scans of the pulmonary veins.

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