Anomalous Systemic Arterial Supply to the Basal Segments with an Aneurysmal Aberrant Artery Showing Advanced Wall Fragility: A Case Report and Literature Review

INTRODUCTION: Anomalous systemic arterial supply to the basal segments (ASABS) is a rare congenital pulmonary anomaly. Considering the associated complications of pulmonary hypertension or hemoptysis, surgical lung resection is recommended. However, there is a lack of standardized surgical management guidelines. We report a case of ASABS with an aneurysmal aberrant artery, in which imaging findings suggested an increased risk of rupture. Thoracic endovascular aortic repair (TEVAR) was first performed to achieve inflow control; this strategy provided a secure setting for subsequent pulmonary resections.