Severe Back Pain, Epigastric Distress and Refractory Nausea: An Unusual Presentation of Mediastinal Bronchogenic Cyst: 1716. (October 2017) - Ali, Saeed; Khan, Muhammad Talha; Majeed, Umair; Asad ur Rahman, Fnu; Sharbatji, Mohamad; Khalid, Sameen; Khetpal, Neelam; Idrisov, Evgeny