A 60-year-old woman was admitted to our department for a left upper lobe and left lower lobe ground glass nodules. Three-dimensional computed tomography bronchography and angiography showed an aberrant anterior ascending segmental pulmonary artery (A3aii) branching from the lingular artery. We performed left upper division segmentectomy and left lower superior segmentectomy for ground glass opacity lesions, and the A3aii variation artery was safely dissected. The patient received an uneventful recovery, and the final pathologic diagnosis was early-stage multiple primary lung cancers. The A3aii branching of the lingular artery was extremely rare. Preoperative three-dimensional computed tomography bronchography and angiography was important to provide accurate vessel variation information and achieve accurate and safe segmentectomy procedure.
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