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目的分析小儿睾丸、附睾肿瘤和炎性肉芽肿影像学特点,提高诊断准确性。方法全部13例行超声检查。CT平扫10例,其中增强6例。回顾性分析13例儿童睾丸、附睾肿瘤和炎性结节的影像学表现,并与手术及病理结果相对照。结果超声检查:13例均有内部回声强弱不等、分布不均匀,8例肿瘤内血流信号丰富,3例少血流信号,2例无血流信号,腹膜后淋巴结转移2例。CT平扫呈混杂密度4例,3例有钙化,软组织密度或绝大部分软组织密度6例。增强明显不均匀强化4例,轻度强化1例,无强化1例。手术证实成熟性畸胎瘤3例,未成熟畸胎瘤1例,卵黄囊瘤4例,附睾急、慢性炎症3例,淋巴管瘤1例,横纹肌肉瘤1例。结论小儿睾丸肿瘤的超声及CT具有各自特点,2种方法结合能明显提高术前诊断准确率。
Objective To analyze the imaging features of pediatric testicles, epididymal tumors and inflammatory granuloma and improve the diagnostic accuracy. Methods All 13 patients underwent ultrasound examination. CT scan in 10 cases, of which 6 cases were enhanced. The imaging findings of the testis, epididymal tumor and inflammatory nodules in 13 children were retrospectively analyzed and compared with the results of surgery and pathology. Results Ultrasound examination showed that all the 13 cases had unequal internal echo intensity and uneven distribution. The blood flow signals were abundant in 8 cases, 3 cases had few blood flow signals, 2 cases had no blood flow signals and 2 cases had retroperitoneal lymph node metastasis. CT scan was mixed density in 4 cases, 3 cases of calcification, soft tissue density or most of the soft tissue density in 6 cases. There were 4 cases with obvious uneven enhancement, 1 case with mild enhancement and 1 case without enhancement. Surgical confirmation of mature teratoma in 3 cases, immature teratoma in 1 case, 4 cases of yolk sac tumor, epididymal acute and chronic inflammation in 3 cases, lymphangioma in 1 case, rhabdomyosarcoma in 1 case. Conclusion Ultrasound and CT in pediatric testicular tumors have their own characteristics. The combination of the two methods can significantly improve the accuracy of preoperative diagnosis.