Chest radiography and computed tomogram showing mitral stenosis with pulmonary hypertension on radiography and computed tomography scan

An anteroposterior radiograph (A) shows a "mitralized" heart with an enlarged pulmonary artery (arrow), a straight mid-portion of the left heart border (consistent with left atrial enlargement) and a steep left heart border (indicating a normal-sized left ventricle), and a small aorta. Image B is a coronal reconstruction of a computed tomography scan illustrating the underlying anatomy, including an enlarged main pulmonary artery (arrow) and calcified mitral valve (arrowhead). In this patient, right atrial enlargement is also seen in some patients with mitral stenosis, particularly when significant tricuspid regurgitation is present.