摘要
目的探讨睾丸精原细胞瘤的MRI表现。方法回顾性分析3例腹内型隐睾合并精原细胞瘤和6例阴囊内睾丸精原细胞瘤MRI表现。结果隐睾合并的精原细胞瘤MRI表现为类圆形较大的等-长T1长T2信号,内部有坏死及囊性变,线状纤维血管间隔T1WI、T2WI显示清楚;增强后肿瘤缓慢轻度强化,纤维血管间隔早期线样强化。阴囊内睾丸精原细胞瘤平扫MRI表现为小结节状,T2WI呈低信号,内见较厚的低信号纤维血管分隔,增强后边缘及内部纤维血管间隔早期呈蚓状强化,肿瘤实质成分缓慢轻度强化。结论腹内型隐睾合并精原细胞瘤与阴囊内精原细胞瘤的纤维血管间隔早期显著强化是精原细胞瘤的共同特征,但二者大小、形态、边缘表现不同,增强后边缘及内部纤维血管间隔强化形态不同。
Objective To observe MRI features of testicular seminoma. Methods MRI manifestations of 3 patients with abdominal cryptorchidism merged in spermatogonial cells and 6 with testicles in the scrotum of spermatogonia were retro spective analyzed. Results MRI manifestations of spermatogonia cryptorchidism included circularity and equal-long T1, long-T2 signal mass with internal necrosis and cystic, the fibrovascular septa were displayed clearly at TIWI and T2WI. The tumors slightly enhanced, while fibrovascular septa early enhanced. Testicular seminoma in scrotum present as nodules of low T2 signal, with low signal thick fibrovascular septa which earthworm-like enhanced early from the edge and internal, the real ingredients of tumor enhanced slowly and slightly. Conclusion Both fibrovascular septa of seminoma combined with abdominal cryptorchidism and in scrotum remarkably enhance in earlier period, which is the common feature of seminoma, but they are different at sizes, shapes, edge performances, the shapes of enhanced edges, and their internal fibrovascular selpta are different.
出处
《中国医学影像技术》
CSCD
北大核心
2012年第5期982-985,共4页
Chinese Journal of Medical Imaging Technology
关键词
睾丸
隐睾症
精原细胞瘤
磁共振成像
Testis
Cryptorchidism
Seminoma
Magnetic resonance imaging
