[Blunt Traumatic Aortic Arch Pseudoaneurysm and Literature Review:Report of a Case].

We experienced an extremely rare case of blunt traumatic aortic arch pseudoaneurysm( BTAAPA) and report it with literature review. A 40-year-old asymptomatic man with chest X-ray abnormality visited our hospital. Contrast-enhanced computed tomography( CT) scans revealed saccular aortic-isthmus aneurysm, and BTAAPA was diagnosed because of a history of multiple severe traffic trauma 21 years before. The patient underwent replacement of the distal aortic arch and proximal descending aorta under partial cardiopulmonary bypass through left posterolateral thoracotomy. The postoperative course was uneventful. BTAAPA is exceedingly uncommon, and our comprehensive literature search identified only 9 cases including the present case. The age at diagnosis was 10 to 76 years, 7 cases were males, and most of the traumas were due to traffic accidents. The present case had the longest duration (21 years) from the trauma to the diagnosis. Six patients underwent thoracic endovascular aortic repair with good prognosis.