PRIMARY OBJECTIVE:
I. To determine if transbronchial cryobiopsy guided by three-dimensional fluoroscopy reduces the incidence of pneumothorax up to 72 hours after transbronchial cryobiopsy.
SECONDARY OBJECTIVE:
I. To describe outcomes of cryobiopsy, need for interventions related to transbronchial cryobiopsy, radiation dose, and any complications or adverse events after transbronchial cryobiopsy guided by three-dimensional fluoroscopy.
OUTLINE:
Patients undergo transbronchial cryobiopsy guided by three-dimensional fluoroscopy. Patients' medical records are also reviewed.
