RT Journal Article SR Electronic T1 A rare cause of periorbital swelling JF BMJ Case Reports FD BMJ Publishing Group Ltd SP bcr-2018-224436 DO 10.1136/bcr-2018-224436 VO 2018 A1 Laura Leach A1 Chloe Swords A1 Nazir Bhat YR 2018 UL http://casereports.bmj.com/content/2018/bcr-2018-224436.abstract AB