患者女,35岁,反复活动后胸闷气促伴心悸3 d入院。干明显增宽达56 mm(正常为28.6 mm),右房、右室扩大,三尖瓣返流速度3.25 m/s,最大压差42 mmHg。超声诊断:右心扩大,三尖瓣中到重度关闭不全,肺动脉扩张伴肺动脉高压。胸部后前位X线片:两肺动脉及右下肺动脉干明显扩张似肿块状,外 Female patient, 35 years old, repeated chest tightness and air chest pain with palpitations 3 d admission. Significantly widened up to 56 mm (normal 28.6 mm), right atrium, right ventricular enlargement, tricuspid regurgitation velocity of 3.25 m / s, the maximum pressure 42 mmHg. Ultrasound diagnosis: Right heart enlargement, moderate to severe tricuspid regurgitation, pulmonary dilatation with pulmonary hypertension. Anteroposterior X-ray film: two pulmonary artery and right lower pulmonary artery obvious expansion like mass, outside