Background: Branch atheromatous disease (BAD) is believed to be one subtype of ischemic stroke brought on by plaque accumulation that obstructs or stenoses the entrance of penetrating branches. Based on clinical status, risk factors, laboratory results, and radiographic features of infarct and blood vessel morphologies, BAD has been differentiated from large-vessel occlusion and small-vessel disease. BAD-induced stroke has been strongly associated with worse outcomes than lacunar strokes, including high rates of early neurological deterioration (END), recurrent transient ischemic attacks and strokes, and disability. Determining treatment options and each patient’s prognosis depends on early identification of BAD. Case Presentation: A 34-year-old male with a history of recurrent acute ischemic stroke within 7 months, caused by stenosis of the M1 segment of the right middle cerebral artery, was hospitalized twice at the Third Central Hospital of Mongolia. Intravenous Thrombolytic therapy (tPA) was administered during each admission. Conclusion Precise diagnosis of BAD is crucial for planning subsequent treatment and secondary prevention.

Middle aortic coarctation (MAC), a variantof middle aortic syndrome, is a rare entity withonly ~200 cases described in the literature.It classically presents with early onset andrefractory hypertension, abdominal angina,and lower extremity claudication(1).A 30 years-old woman, Her systolic bloodpressure measures 180-200mm Hg and diastolicpressures measure 70mm Hg in both arms,lower extremity pressures are approximately70mm Hg. Her bilateral femoral pulses andpedal pulses are nonpalpable, but present onDoppler exam and CT-Angiography.We prepared diagnostic of CT-Angiographyand Aortography before operation. Wesuccessful operated abdominal aorticcoarctation by “Silver graft” Aortoaortic bypasson the middle aortic, left nephrectomy.She was discharged home on postoperativeday 7. Post operation is good. We werecontrolled CT-Angiography.