Abstract
A 33-year-old woman presented with a 2-year history of occasional hemoptysis. Routine laboratory test results were within the normal range, and clinical examination findings were unremarkable. Computed tomography angiography revealed an aberrant large systemic artery with wall calcification. This artery supplied blood to the basal segments of the right lower lobe (Fig. 1A, arrow). This anomalous artery originated from the celiac axis and entered the thorax via the esophageal hiatus, ran parallel to the esophagus on its right and eventually entered the right lower lobe via the pulmonary ligament, to supply the lateral, posterior, and medial basal segments.
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