Radiological signs in mitral stenosis

Collection of Medicine MCQs (Cardiovascular system) for medical students. Concept based MCQs with detailed explanations which help students to gain valuable insights and gain an edge in competitive examinations. More than just answering MCQs, the explanations will improve the knowledge and understanding about the conditions discussed. Also useful for MD students who are preparing for Superspeciality entrance examinations. Medicine MCQs - Cardiovascular System Kindle Edition: Click Here for a Preview. Comments and suggestions are most welcome.

Radiological signs seen in mitral stenosis are:

  • Backward displacement of esophagus by enlarged left atrium (in lateral view X-ray)
  • Enlarged left atrium in AP view X-ray (Blood pools in the left atrium as it is unable to pass into the left ventricle. This results in progressive dilatation.)
  • Straightening of left heart border
  • Double shadow due to enlarged left atrium
  • Splaying of carina (The left main bronchus is lifted up by the enlarged left atrium)
  • Prominent upper zone pulmonary veins (Inverted moustache sign /  Antler’s horn sign / Cephalisation pulmonary of blood flow)
  • Enlarged pulmonary trunk (This occurs following the development of pulmonary hypertension)
  • Kerley B lines (indicating fluid collection in the interlobular septa)
  • Calcification of mitral valve
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