Imaging features analysis of solitary brain metastatic adenocarcinoma / 实用放射学杂志

ABSTRACT

Objective To analyze the imaging features of solitary brain metastatic adenocarcinoma and improve the diagnostic level of the disease.Methods Imaging features of solitary brain metastatic adenocarcinoma of 5 1 cases confirmed by surgery and pathology were analyzed retrospectively.Results The locations of lesions includedsupratentorial(33),infratentorial(9),sellar region(4),cliv-us(3),foramen magnum region(1)and skull(1).The tumor sizemaximum72 mm×45 mm×60mm,minimum13 mm×7 mm ×6 mm.The shapesimilar round(25),irregular(22)and dumbbell(4).The solid lesions of the tumors showed equal signal inten-sity or slightly low signal intensity on T1 WI,and equal signal intensity or slightly high signal intensity on T2 WI,heterogeneous en-hancement,mixed density on CT.The peritumor edema degreeno (10),mild(1),medium(1 7),severe(23).In the contrast imaging, 1 5/25 cases with adjacent enhanced and thick meninges,5/25 cases with nodular enhanced meninges.Conclusion The solitary brain metastatic adenocarcinoma has certain imaging characterics and is contribute to differentiate with intrabrain primary tumor.