Pulmonary atypical adenomatous hyperplasia:64-slice volume CT findings and differential diagnosis
SUN Zhen-chao
LI Jia-de
Abstract：Objective To investigate the 64-slice volume CT findings and differential diagnosis of the pulmo-nary atypical adenomatous hyperplasia ( AAH) .Methods The data of 64-slice volume CT image of 12 cases of patho-logically confirmed pulmonary AAH was made retrospectively .The CT data were compared with those of the 76 cases of localized ground-glass opacity(GGO) in terms of the lesion location ,size,shape,edge signs,internal structure and relationship to adjacent structures .Results Pure ground-glass density nodules were commonly seen in AAH group , pure ground-glass density and mixed-density nodules were seen in benign group , and mixed-density nodules account for the majority in malignant group .There were statistical differences between AAH group and benign or mglignant GGO group in the aspects of lobulation sign,spicular sign,pleural indentation sign and vascular convergence sign (P<0.05 ) .However ,there showed no significant differences in the signs of vacuole sing and air branchogram between the AAH group and benign GGO group or malignant GGO group ( P>0.05 ) .Conclusion Pure ground-glass density nodules are the main constituent seen in AAH group .The nodules′diameter were commonly less than 10mm.And no lobulation sign,spicular sign,pleural indentation sign or vascular convergence sign can be seen in the AAH group .It can do help in differential diagnosis analyzing the CT value of the solid component .However,only the histopathology result is the real and the last diagnosis .
Keywords：Lung tumorAtypical adenomatous hyperplasia (AAH)X-ray computerComputerized tomography
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 814-818 )