【摘要】 本文对104例经病理证实的腮腺肿瘤的声象图进行了分析,并对32例腮腺肿瘤进行了声象图——病理对照研究。更多还原

【Abstract】 Gray scale sonography was performed on 104 cases of parotid tumors. The echo-pattern of tumors were divided into five types. (1) round or oval shapes with sharp,smooth boundary and homogeneous internal echo were found in benign tumors ,(2)lo-bular or oval shape with coarse boundary echo and homogeneous internal echo were found with benign locally aggressive tumors. (3) lobular tumors with coarse boundary and heterogeneous internal echo characterized low-grade malignant tumors. (4) irregular shape and ill-defined boundary with heterogeneous internal echo and occasional acoustic shadow characterized malignant tumors exclusively; and (5)oval sliaps with defined boundary and internal hypoechoic regions separated by hyperechoic lines were largely limited to Warthin’s tumors. The echogram diagnosis correlated with histologic diagnosis in 88 of 104 cases(84.6%).The sonograms of 32 surgical specimens of parotid tumors were compared with their histopathologic findings. The boundary echoes were related to complete of the capsule of the tumor.The internal echo is related to internal structures of the tumors.更多还原