睾丸精原细胞瘤的超声造影特征

CONTRAST-ENHANCED ULTRASOUND FEATUERS OF TESTICULAR SEMINOMA

目的总结睾丸精原细胞瘤的超声造影特征。方法应用超声造影对19例经手术病理证实的睾丸精原细胞瘤病人进行检查,分析病灶的增强开始时间、达峰时间、增强消退时间、峰值强度。结果睾丸精原细胞瘤内均可见超声造影剂填充,呈明显增强,为富血供病灶。直径<4cm的病灶造影剂自周边呈树枝状快速向内填充,达峰时呈分布不均匀的高增强;直径>4cm的病灶内部可见不规则的造影剂无填充区,周围呈分布不均匀的高增强;2例弥漫浸润型超声造影剂不均匀地填充,达峰时呈高增强。结论超声造影可以清楚显示精原细胞瘤的血流灌注特征,为临床医生诊断提供更多的信息。

Objective To analyze the contrast-enhanced ultrasound （CEUS） features of testicular seminoma. Methods A CEUS was conducted in 19 patients with testieular seminoma confirmed by surgery and pathology. Beginning time of the lesion enhancement, the time to peak, the time to wash out, and peak intensity were analyzed. Results All the tumor lesions were filled with ultrasound contrast agent and enhanced with rich blood supply. In the lesions of 〈4 cm in diameter, the contrast medium quickly filled into the tumor like a tree from periphery, the enhancement was uneven while reaching the peak. In the lesions of 〉4 cm in diameter, the regions with no contrast filled could be seen and uneven enhancement were noted around. Diffuse infiltrative type of contrast was filled in two cases, which enhanced while reaching the peak. Conclusion CEUS can clearly display the blood flow infusion of testieular seminoma, and provide more information for clinical physicians in the diagnosis of the disease.