<p> Aortic Thrombi in a patient with HIT Syndrome Khalaf HH, MD; Ibrahim MF, FRCS(C-Th) ; Al-Murayeh MA , FACC . Cardiac Center, King Fahad Medical City, Riyadh, Saudi Arabia.</p><p>47-years-old female who had radical mastectomy for carcinoma of breast. She is not known diabetic or hypertensive . She received heparin for DVT prophylaxis during her hospital stay . She presented two weeks later with right middle cerebral artery infarction with hemorrhagic transformation. She had pulmonary embolism as confirmed by spiral chest CT . She was diagnosed as HIT syndrome. Transesophageal echocardiogram was done in a search for a cardiac source of emboli which revealed normal heart in structure and function . There were two highly mobile echo-dense masses within the lumen of the distal aortic arch ( Figure 1) , also another mass in the proximal descending thoracic aorta ( Figures 2a, 2b ) . The wall of the aorta was otherwise normal, the three masses as consistent with thrombi.</p><p>Correspondence:</p><p>Dr. Mushabab Ayedh Al-Murayeh Head, Cardiology Department Armed Forces Hospital Southern Region P.O. Box 101, Khamis Mushayt, Saudi Arabia</p><p>E-mail: [email protected] Telephone +966 7 250-0001 Ext 2504 Fax: +966 7 250-0001 Ext 2538 (Figure 1). Short axis view of the distal aortic arch showing two large intraluminal thrombi.</p><p>(Figure 2a). Short axis view of the proximal descending thoracic aorta showing one large intraluminal thrombus.</p><p>(Figure 2b). Long axis view of the proximal descending thoracic aorta showing one large intraluminal thrombus. </p>