“…Physeal arrest has been reported after radial and femoral arterial cannulations complicated by thromboembolic events but has not been reported after ligation or repair of the arterial structures [6]. Less invasive treatment strategies have been reported, including external compression devices, thrombin injection of the adventitia, coil embolisation, and stenting [2,6,7]. The finding of a spontaneous radial artery pseudoaneurysm in an infant without corresponding vascular trauma is rare and, to our knowledge, has not been reported in the literature.…”