Y-shaped Dumon® stent with left limb modification that included: invagination of distal left limb, circumferential mattress sutures (silk 1/0 suture) and DermabondTM (Ethicon Inc., Somerville, NJ, USA) addition. (A) Shows stent prior to placement while (B) shows a bronchoscopic visualization of the left main bronchus stump on 10-month follow-up, after complete fistula closure.