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True intrathoracic subclavian artery aneurysms (SCAAs) are rare and have various etiologies. Right intrathoracic SCAAs pose specific anatomic challenges to repair. We present three different operative approaches, open, endovascular, and hybrid repair, for the repair of a right intrathoracic SCAA in three patients with genetic arteriopathy: Marfan syndrome, vascular Ehlers-Danlos syndrome, and unspecified Ehlers-Danlos syndrome, respectively. These cases demonstrate an individualized operative approach based on the genetic diagnosis for each patient presenting with a right intrathoracic SCAA.