A Well-Defined Endobronchial Tumor in a 26-Year-Old Man.

A 26-year-old man presented with a 2-week history of productive cough and a 1-year history of effort-related dyspnea. His medical history was significant for hay fever and exertion-triggered asthma. He was not taking medicines regularly but was using inhaled salbutamol as needed.

Covered versus uncovered self-expandable nitinol stents in the palliative treatment of malignant distal biliary obstruction: results from a randomized, multicenter study.

Background: Covered biliary metal stents have been developed to prevent tumor ingrowth. Previous comparative studies are limited and often include few patients.

Objective: To compare differences in stent patency, patient survival, and complication rates between covered and uncovered nitinol stents in patients with malignant biliary obstruction.