Conclusion
The repercussions of persistent lung collapse in cystic fibrosis patients can be significant and it is associated with a poor prognosis1. Sequential therapeutic bronchoscopies with instillments of recombinant human Dnase can be effective inMycobacterium abscessus lobar collapse caused by mucus plugging and should be considered for cystic fibrosis patients who do not respond to the standard initial therapeutic regime for lobar collapse.