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prominence of pulmonary artery segment ? Pulmonary venous hypertension Pumonary interstitial edema LA enlargement ?PA – right border: Double density of left atrial enlargement,double ?PA – left border: left atrial appendage enlargement ? Lat : esophagus pressed ? Elevation of left mainstem bronchus 14/231 Enlargement of LA, double shadow 15/231 Backwards displacement of the contrast filled esophagus F, 47yr dyspnea, palpitation amp。 edema of bilateral lower extremes for 2 months . 16/231 Enlargement of LA and RV 17/231 F, 44yr RHD diagnosed many yrs, dyspnea, palpitation for 4 months M, 45yr Repeated dyspnea after stress for 1+ yr, aggravated and with edema of right lower extreme for 5+ months female, 39y, cough 3m