SplintER Series: Attack by Bat

30-year-old male presents to the ED with pain over the right shoulder after being assaulted by a bat. The right arm is held in adduction and has a limited range of motion due to pain. An x-ray of the right shoulder was obtained and is shown above (Figure 1. Case courtesy of Dr. Ian Bickle, Radiopaedia.org, rID: 74640).

A 76-year-old female with a history of HTN, TIA, CAD, left CEA, and CKD presented to the emergency department for evaluation of neck bruising and swelling. The patient stated that the night before, she was eating popcorn and choked on a kernel. She states that she coughed to clear her throat and shortly after she developed swelling and bruising to the left side of her neck, which has progressively gotten worse. The patient has a remote history of left carotid endarterectomy and was concerned that her symptoms could be related to the prior surgery. On examination, she had ecchymosis and a hematoma/mass to the left side of her neck without palpable thrill or bruit. A well-healed CEA scar was noted. A CTA of the neck was obtained to determine the source of the ecchymosis/hematoma. What is the diagnosis?




