Abstract
This study aimed to analyze and subsequently recapitulate the contrast-enhanced ultrasound (CEUS) characteristics in orbital cavernous venous malformation (CVM), exploring the key aspects of differential diagnosis. Several orbital CVM cases (n=56) confirmed by surgery and pathology at Sichuan Provincial People's Hospital (Chengdu, China) were analyzed retrospectively. The conventional ultrasound showed mostly hypoechoic orbital CVM lesions (64.2%), with clear boundaries (98.2%) and quasi-circular (100%) characteristics. However, the blood flow signals were not rich enough, overlapping with other orbital space-occupying lesions to a considerable extent. The CEUS imaging showed a characteristic progressive enhancement pattern of focal nodules in CVM lesions. In conclusion, CEUS may offer certain specificity and positive significance for the preoperative qualitative diagnosis of orbital CVM.