RT Journal Article SR Electronic T1 When a plain CT brain looks like contrast-enhanced- never forget polycythemia JF BMJ Case Reports JO BMJ Case Reports FD BMJ Publishing Group Ltd SP e246106 DO 10.1136/bcr-2021-246106 VO 14 IS 9 A1 Payel Biswas A1 Bhagya Vardhan A1 Subhankar Chatterjee A1 Umesh Kumar Ojha A1 Souvik Dubey YR 2021 UL http://casereports.bmj.com/content/14/9/e246106.abstract AB