Bleeding into a pulmonary cyst caused by pulmonary radiofrequency ablation

摘要

Pneumothorax and, pleural effusion are common complications after radiofrequency (RF) ablation of lung tumors (1). Massive hemorrhage and hemoptysis are rare but potentially fatal complications (2-4). We report a case of bleeding into a pulmonary cyst caused by pulmonary RF ablation. Our institutional review board gave us an approval and a waiver of informed consent for the present retrospective study. An 80-year-old woman with a 50-year history of bronchial asthma had undergone right upper lobectomy for lung adenocarcinoma (T1N0M0, stage IA) 7 years previously. Recurrence in the right lower lobe 2 years later was treated with RF ablation. Three years after RF ablation, local recurrence at the same site was treated with further RF ablation. After the second RF ablation treatment, a pulmonary cyst formed at the ablated site.