Value of Contrast-enhanced Ultrasonography in Distinguishing Hysteromyoma from Adenomyosis

Objective To investigate the value of contrast-enhanced ultrasonography(CEUS) in distinguishing hysteromyoma(HM) from adenomyosis(AM). Methods A total of 103 cases with hysteromyoma and 76 cases with adenomyosis were retrospectively studied with CEUS. Results The enhancement patterns of hysteromyoma on CEUS were peripheral pseudocapsule type in 89 cases(86.4%),synchronous type in 14 cases(13.6%),and no case had centripetal type enhancement.The enhancement patterns of adenomyosis on CEUS were synchronous type in 47 cases(82.5%),centripetal type in 10 cases(17.5%) and no case with peripheral pseudocapsule enhancement.The most of hysteromyoma are peripheral pseudocapsule type enhancement(Z=-10.502,P0.01).While in adenomyosis,synchromous and centripetal enhancement(respectively Z=-8.562,P0.01 and Z=-4.377,P0.01) were the common type. Conclusion The enhancement pattern of hysteromyoma on CEUS was significantly different from adenomyosis.As a new non-invasive method,contrast-enhanced ultrasonography has important clinical value on the differential diagnosis of hysteromyoma and adenomyosis.