High-resolution CT features and follow-up analysis of welder pneumoconiosis

VernacularTitle:电焊工尘肺高分辨CT影像表现及随访分析
Author: Wenbiao LU ¹ ; Shaobo LI ; Zi CHEN
Author Information

1. 湖南省职业病防治院放射科,湖南长沙 410001
Keywords: occupational diseases; weld; dust; pneumoconiosis; lung; computed tomography
From: Journal of Practical Radiology 2024;40(3):370-372
CountryChina
Language:Chinese
Abstract: Objective To explore the high-resolution computed tomography(HRCT)imaging findings and prognosis for the welder pneumoconiosis.Methods The HRCT imaging findings and follow-up changes in 11 cases of welder pneumoconiosis diag-nosed by occupational diseases were analyzed retrospectively.Results There were 7 cases(63.7%)showed central lobular nodule shadow,5 cases(45.5%)developed patchy ground glass shadows in the center of the lobule("light ink sign"),5 cases(45.5%)showed branching fine line shadow,2 cases(18.2%)showed interlobular septal thickening,and 3 cases(37.5%)showed better ima-ging performance than before.Conclusion HRCT imaging findings of welder pneumoconiosis mainly include diffuse distribution of nodules in the center of lobules,"light ink sign",and branching fine line shadows in both lungs,with rare hilar and mediastinal lymphadenopathy and calcification.When the image shows nodule shadow or"light ink sign"in the center of the lobule,it is more likely to improve after leaving environment exposure.