摘要
Lung cancer is a leading cause of cancer-associated death worldwide,and the morbidity and mortality of lung cancer have increased over the past few decades.Imaging techniques are limited in providing a definitive diagnosis,which requires a tissue sample for pathologic evaluation.Adenocarcinomas account for 40%of all lung cancers and tend to occur peripherally in the lung,[1]making them amenable to ultrasound-guided percutaneous biopsy for pathologic diagnosis.Peripheral lung cancers are usually close to the pleura,enabling ultrasound to clearly show the internal structure of the lesion,its blood supply,and its relationship with surrounding tissues.Although ultrasound-guided transthoracic cutting needle biopsy is considered a safe and efficient method for obtaining a definitive pathologic diagnosis,the technique is associated with several complications,including air embolism,pneumothorax,pulmonary hemorrhage,and tumor seeding.[1]Severe hemoptysis can necessitate endobronchial tamponade,arterial embolization,or surgery and can be life-threatening.[2]Data regarding the risk factors for pulmonary hemorrhage after ultrasound-guided percutaneous lung biopsy are scarce.
