[Abstract] Objective To investigate the imaging characteristics, causes and treatment of patients with acute type B aortic coarctation with proximal pseudoluminal thrombosis. Methods The clinical data and follow-up data of 6 patients with acute type B aortic coarctation with proximal pseudo-luminal thrombosis diagnosed by 64-row or more whole aortic CTA from January 2010 to October 2012 in the Department of Vascular and Endovascular Surgery of the First Affiliated Hospital of Zhengzhou University were retrospectively analyzed. Results All six patients were discharged from the hospital after 2-4 weeks of conservative drug treatment and followed up for 6 months to 2 years. Dynamic review of CTA showed gradual formation and gradual resorption of pseudoluminal thrombus from top to bottom. Conclusion Acute Stanford B aortic coarctation with proximal pseudoluminal thrombosis is in a hemodynamically stable phase and does not require TEVER treatment. Conservative pharmacological treatment with long-term close imaging follow-up is the preferred treatment modality for this disease. Zhiwei Wang, Department of Vascular Surgery, First Affiliated Hospital of Zhengzhou University