<prompt> Which of the following is viually diagnostic of aoitis on chest X-Ray?Calcification in descending aoaCalcification of ascending aoaCalcification of pulmonary aeryFocal oligemia  <response>: B i.e. Calcification of ascending aoa - Saccular aneurysm with pencil - thin linear dystrophic calcification most commonly in ascending aoa commencing near the aoic rootQ is charcteristic feature of syphilitic aoitis. - Aoic aneurysm in Marfans syndrome often involves sinuses of valsalva, ascending aoa. It can also affect aoic ring resulting in AR. The aneurysm is classically flask shaped with loss of usual indentation at sino -tubular junction. Takayasus aoitis affects segments of aoa including main aoic branches pulmonary aeries. 