A 40-year-old man with history of closed mitral valvotomy performed for rheumatic mitral stenosis 10 years prior was admitted to our hospital with atrial fibrillation and dyspnea on exertion. Posteroanterior (Figure 1) and lateral (Figure 2) chest radiographs exhibited the following classic findings of chronic mitral stenosis. Figure 1. Chest radiograph, posteroanterior view. See text for definition of numbers. Figure 2. Chest radiograph, lateral view. See text for …