ObjectiveTo analyze the characteristics of conventional ultrasound and contrast-enhanced ultrasound（CEUS）in adult testicular tumors and tumor-like lesions

and to explore the value of contrast-enhanced ultrasound in theirdifferential diagnosis.MethodsConventional ultrasound and CEUS data of patients with testicular tumor and tumor-likelesions confirmed by surgery and pathology（26 cases in testicular tumor group and 14 cases in tumor-like lesions group）wereretrospectively analyzed

the imaging features of the two diseases was compared and the diagnostic efficacy of CEUS in twodiseases was analyzed.ResultsThere were statistically significant differences in lesion size

morphology and echo betweentesticular tumor group and tumor-like lesion group（all P<0.05）.There were statistically significant differences in enhancementintensity

enhancement shape

enhancement mode and"pseud-capsule"sign between two groups（all P<0.05）.The sensitivity

specificity

and accuracy of conventional ultrasound in the diagnosis of testicular tumors were 88.5%

64.3%

and 80.0%.Thesensitivity

specificity

and accuracy of CEUS in the diagnosis of testicular tumors were 100%

92.9%

and 97.5%

there was nosignificant difference in the diagnostic efficacy between the two methods.ConclusionThe feature of CEUS is helpful for thedifferential diagnosis of different testicular tumors and tumor-like lesions

which has important clinical value.