Application of CT guided percutaneous lung biopsy in the diagnosis of occupational pneumoconiosis / 中国职业医学

ABSTRACT

OBJECTIVE: To investigate the application value of computed tomograph( CT) guided percutaneous lung biopsy in the diagnosis of occupational pneumoconiosis( the following is referred to as “pneumoconiosis”). METHODS: A total of63 cases of CT-guided percutaneous lung puncture biopsy from patients with pneumoconiosis,were analyzed for the successful rate of percutaneous lung puncture,the positive rate of pneumoconiosis pathological results and diagnostic accuracy. RESULTS: The successful rate of puncture was 100. 0% in these 63 cases. Pathological examination revealed60 cases of pneumoconiosis like change,with a positive rate of 95. 2%. Among them,56 cases were diffuse fibrosis,48 cases were dust deposition,and 32 cases were dusty nodules. There were 5 cases of tuberculosis granuloma,1 case of tumor,1 case of macrophage pneumonia and 1 case of infection. According to the pathological examination results,54 cases of simple pneumoconiosis,1 case of occupational hard metal lung disease,1 case of pneumoconiosis combined with tumor,4 cases of pneumoconiosis combined with tuberculosis and 2 cases of simple tuberculosis were confirmed. The diagnostic accuracy was 98. 4%. CONCLUSION: CT guided percutaneous lung biopsy is an ideal clinical method for obtaining pathological specimens of lung tissue. The positive rate of detecting pneumoconiosis pathological changes is high.The accuracy of pneumoconiosis diagnosis is high. It has high application value in the diagnosis and differential diagnosis of pneumoconiosis.