Abstract
Rationale:Meandering pulmonary vein is a rare congenital pulmonary vascular anomaly. It presents unilateral single pulmonary vein that takes a circuitous route in the lung and drains normally into the left atrium. Most cases of meandering pulmonary vein have been reported to be right-sided. A few of them coincided with features of scimitar syndrome.Patient concerns:A 71-year-old woman and a 20-year-old man presented with incidentally found abnormal findings on chest radiographs.Diagnosis:Through multi-detector chest computed tomography, the 71-year-old woman was diagnosed as left-sided meandering pulmonary vein without any other anomalies while the 20-year-old man was diagnosed as having right-sided meandering pulmonary vein with features of scimitar syndrome.Interventions:Specific intervention was not performed for either patient.Outcomes:These patients were reassured and discharged. They are doing well without any respiratory symptoms.Lessons:Meandering pulmonary veins can occur on the left side and coincide with features of scimitar syndrome. Multi-detector computed tomography with 3D reconstruction allows clear depiction of vascular connections and associated anomalies, obviating the need for invasive procedures.
Highlights
Meandering pulmonary vein (MPV) is a rare anomaly of pulmonary vein
Scimitar syndrome is a complex malformation characterized by 3 main abnormalities, including the right pulmonary vein draining into inferior vena cava (IVC), a systemic arterial supply of the lung, and hypoplasia of the right lung.[1,2,3]
MPV can often be confused with scimitar syndrome, when it occurs on the right side because both conditions show a prominent vertically running vascular shadow on chest radiographs
Summary
Meandering pulmonary vein (MPV) is a rare anomaly of pulmonary vein. It is often confused with more common conditions such as scimitar syndrome and pulmonary arteriovenous malformation (AVM). Scimitar syndrome is a complex malformation characterized by 3 main abnormalities, including the right pulmonary vein draining into IVC, a systemic arterial supply of the lung, and hypoplasia of the right lung.[1,2,3] Other associated anomalies include cardiac malformations and bronchial anomalies.[4] We report 2 rare cases of MPV. A Department of Radiology, Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, b Department of Radiology, Gyeongsang National University Changwon Hospital, Changwon, Republic of Korea.
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