Abstract
We have experienced two cases of mobile carotid plaque detected by carotid ultrasound sonography. A 55-year-old woman, in the terminal stage of stomach cancer, suffered a cerebral infarction in the region of the left MCA. Carotid artery stenosis was not detected by MRA, but carotid mobile plaque was detected by carotid ultrasound sonography. The mobile plaque disappeared with only antiplatelet therapy. The other patient, a 69-year-old woman, had a history of angina and had taken two antiplatelet drugs. She suffered a right cerebral infarction and carotid artery stenosis was not detected by MRA, but carotid mobile plaque was detected by carotid ultrasound sonography. We added another antiplatelet drug, but her symptoms progressed. We performed CAS, which stopped symptom progression. Generally, mobile plaque was not detected by MRA, and carotid ultrasound sonography was reliable to evaluate carotid mobile plaque. We suggest that carotid mobile plaque should be treated with conservative therapy initially, but when symptoms progress, CEA or CAS should be performed promptly.
