Abstract:
Objective To explore the value of contrast-enhanced ultrasound (CEUS) combined with high-frequency linear ultrasound probe for the differential diagnosis of ascaris debris and neoplasm of the gallbladder.
Methods The contrast-enhanced ultrasound findings of 9 patients with ascaris debris and 20 patients with neoplasia of the gallbladder confirmed by surgery in Zhongshan Hospital, Fudan University from June 2015 to June 2018 were retrospectively analyzed. Results of the conventional B-mode ultrasound (BMUS) and CEUS enhancement pattern of the lesions were compared and analyzed according to the current EFSUMB guidelines.
Results The ascaris debris in the gallbladder and the hypoechoic tumor of the gallbladder were both characterized by hypoechoic heterogeneous solid occupation on BMUS. The signals of all pieces of ascaris debris in the gallbladder were not significantly enhanced during each phase of CEUS. However, gallbladder tumors present with some degree of enhancement-regression changes at each phase of CEUS.
Conclusion Depending on the advantages of being real-time, safe and simple, CEUS can sensitively and accurately distinguish the ascaris debris and solid neoplasm in the gallbladder.
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