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Background Massive hemoptysis is a life-threatening event with limited therapeutic options. Bronchoscopic placement of stents may offer an alternative option for massive hemoptysis. However, traditional silicone stents have not been customized, making it difficult to tailor to individual patient's needs for achieving optimal hemostasis. To investigate the efficacy and safety of the modified silicone stent in patients with difficult-to-treat massive hemoptysis. Method Between May 2016 and November 2018, we enrolled 14 patients who underwen