A case of lung cancer with partial pulmonary venous connection in the same pulmonary lobe

Abstract

Partial anomalous pulmonary venous connection is a rare congenital malformation in which a portion of the pulmonary venous system flows into the right atrium, superior vena cava, inferior vena cava, azygos vein, or left brachiocephalic vein rather than the left ventricular system. A 50-year-old man was diagnosed with adenocarcinoma of the left lung following close examination of an abnormal chest shadow discovered during a routine medical checkup. Preoperative chest CT showed PAPVC, but it was an abnormal vessel from a lung lobe that needed to be resected. PAPVC associated with lung cancer does not require special treatment if it returns from the resected lung lobe. However, if it returns from another lung lobe, there is concern about right heart failure, and so caution should be exercised.

In this report, we describe a case of PAPVC associated with a resected lung cancer lobe that was treated with lobectomy, without postoperative complications.