Male,21years old,right side chest pain,dyspnea,hemoptysis for 1hour after trauma.When the patient was riding in the high-speed bus 1hour ago,due to emergency braking,his right chest hit the seat back,and he immediately felt severe pain in his right chest,hemoptysis and dyspnea.Subsequently,the dyspnea gradually worsened and he was sent to the hospital immediately.Physical examination:T37.3℃,P128times/min,R30times/min,BP92/60mmHg.Conscious,cyanotic,with a marked left deviation of the trachea.Right thoracic distension,light tenderness,no bone friction,percussion was a drum sound.Breath sounds disappear.Chest X-ray:obvious subcutaneous emphysema of the chest,compression of the right lung by more than 90%,obvious mediastinal left shift,no fracture of the auxiliary bone,clear bilateral costal diaphragm Angle.What is the diagnosis of this patient?()