div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: Congenital Cholesteatoma of the Mastoid Bone on CT MRI src=https:reader035fdocumentsinreader035viewer202207052358ed69031a28abf75c8b4661html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divpCongenital Cholesteatoma of the Mastoid Bone on CT MRIpdiv