The appearance of bronchioloalveolar carcinoma on high resolution CT
SUN Na1, FAN Jin-yu1, JIANG Hong2
1.Department of CT, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, China;2.Department of Imaging, Heilongjiang Province Hospital, Harbin 150001, China)
Abstract Objective: To study the appearance of bronchioloalveolar carcinoma(BAC) on high-resolution CT. Methods: HRCT scans of 41 patients with pathologically proven BAC were retrospectively analyzed. 7 HRCT findings were separately recorded into 3 types(solitary nodule, multi-nodular, diffusion type) and were assessed with pathologic correlation. Result: HRCT findings of solitary nodule(n=18) are: typical peripheral or subpleural location in 15; pulmonary lesion with irregular margin forming a stellate or patchy pattern 8; vacuole sign and/or brochiologram 14; pleural retraction 12; The features of single lesion in multi-nodular(n=9) were the same as the former; Diffuse consolidative type(n=14): lobar or segmental homogenous consolidation (n=7); “withered tree” sign(n=4); “honey comb” sign(n=6); ground-glass opacity(n=8); acinar nodules(n=6). Conclusion: HRCT is an important method to determine the diagnosis and differential diagnosis of BAC.
2007, Vol. 18 
