Successful transcatheter arterial embolization treatment for chest wall haematoma following permanent pacemaker implantation: A case report

Figure 1 Imaging findings of the haematoma. A: Ultrasonography showed a 11 cm × 5 cm haematoma under right armpit which was unidentified sources; B: Computed tomography angiography showed a small branch of right subclavian artery was rupture hemorrhage (showed as red arrow); and C: Three-dimensional computed tomography angiography showed a pseudoaneurysm (showed as red arrow) of the small branch of the right subclavian artery.