RT Journal Article SR Electronic T1 The cortical venous ribbon sign: diffuse cerebral cortex hyperaemia due to venous congestion JF BMJ Case Reports JO BMJ Case Reports FD BMJ Publishing Group Ltd SP e254167 DO 10.1136/bcr-2022-254167 VO 16 IS 12 A1 Yu, Yannan A1 Mattay, Raghav A1 Amans, Matthew Robert YR 2023 UL http://casereports.bmj.com/content/16/12/e254167.abstract AB