RT Journal Article SR Electronic T1 ‘Headless Mermaid’: a helpful normal appearance to evaluate medial wall of middle ear on coronal high resolution CT scan of temporal bone JF BMJ Case Reports JO BMJ Case Reports FD BMJ Publishing Group Ltd SP e245752 DO 10.1136/bcr-2021-245752 VO 14 IS 12 A1 Anagha Rajeev Joshi YR 2021 UL http://casereports.bmj.com/content/14/12/e245752.abstract AB