Tehran University of Medical Sciences The Research in Heart Yield and Translational Medicine (RHYTHM) 3115-7270 12 2 2017 05 15 82 84 EN Reza Ghanavati Rasoul Akram General Hospital, Iran University of Medical Sciences, Tehran, Iran. Mehran Arab Ahmadi Functional Neurosurgery Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Behdad Behnam Functional Neurosurgery Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran. 2015 12 26 2016 04 16 Transradial coronary angiography has been known as an alternative to the transfemoral approach with fewer serious complications. Radial artery pseudoaneurysms present as a rare complication of transradial catheterization. Although some methods have been applied for the obliteration of pseudoaneurysms, the use of radial bands such as the TR Band® (Terumo Medical Corporation, Somerset, NJ) is a novel efficient technique only suggested by a few reports. We describe a 34-year-old man, who underwent transradial primary coronary angiography due to ST-elevation myocardial infarction. Two months later, he noticed a pulsatile mass on his hand where the catheterization was done. Ultrasonography proved the diagnosis of a pseudoaneurysm. Consequently, a TR Band® was applied to compress the mass. Interestingly, 24 hours later, ultrasonography confirmed a thrombosed pseudoaneurysm and the pulsatile mass had completely disappeared gradually without recurrence at 2 months’ follow-up. Hence, this case report aims to propose the TR Band® as an effective noninvasive method for the treatment of pseudoaneurysms following catheterization. https://rhythm.tums.ac.ir/index.php/jthc/article/view/462 https://rhythm.tums.ac.ir/index.php/jthc/article/download/462/589