13 August 2025
: Case report 
Cryotherapy via Flexible Bronchoscopy for Pediatric Plastic Bronchitis: A Case Report
Unusual or unexpected effect of treatment
Fang Jin ABCDEF 1,2, Xiaofen Tao
EF 1,2, Hujun Wu EF 1,2, Lei Wu ABCD 1,2, Yingshuo Wang EF 1*
DOI: 10.12659/AJCR.947838
Am J Case Rep 2025; 26:e947838
Figure 2 Endoscopic removal of a plastic sputum cast. Panel A: Bronchoscopic view demonstrating an obstruction in the left lower lobe bronchus due to a cast. Panel B: Extraction of the cast using a foreign body basket under bronchoscopic guidance. Panel C: Retrieval of the cast with the aid of forceps through the bronchoscope. Panel D: Cryoprobe-assisted removal of the cast, utilizing a cryoprobe to freeze and extract the cast material.