关键词: 肝血管瘤, 彩色多普勒超声, 超声造影, 特征

Abstract: Objective The aim of this study was to summarize manifestations of hepatic hemangioma (HH) by using grayscale ultrasound, color Doppler flow imaging (CDFI) and contrast-enhanced ultrasound (CEUS), in order to help clinicians making diagnosis. Methods 62 patients with HH were encountered in Jingmen People's Hospital, affiliated to Jingchu Institute of Technology between January 2022 and August 2024, all patients underwent grayscale ultrasound, CDFI and CEUS examination, and underwent surgical resection. Results Tumor resection completed successfully in all the 62 patients with HH in our series, and histopathological examination diagnosed cavernous hemangioma in 44 cases, sclerosing hemangioma in 7 cases, vascular endothelial cell tumor in 6 cases and capillary hemangioma in 5 cases; ultrasonography showed that the size of HH lesions in this group ranged from 1.5 to 84 cm, with an average of (4.6 ± 1.3) cm, and the lesions presented irregular edges and non-spherical shapes; the lesion presented as enhanced echo or uneven echo distribution; CDFI examination demonstrated the lesions presented as spotted short columnar blood flow signals, with blood flow phenomena found within and around the vascular tumor; CEUS examination showed a slightly hyperechoic nodule in the liver, which appeared as a nodular ring-shaped high-intensity enhancement at arterial phase, subsequently, the contrast agent cleared or manifested as a slightly hyperechoic nodule in the liver; at portal and delayed phases, the contrast agent gradually filled the center, showing high-intensity enhancement. Conclusions The HH is relatively easy to diagnose by gray scale and color Doppler ultrasonography, and for some lesions that are difficult to determine, CEUS examination might be used to help further clarify the diagnosis.

Key words: Hepatic hemangioma, Color Doppler ultrasound, Contrast-enhanced ultrasound, Features