腹膜后良性神经鞘瘤的CT表现分析

CT features of benign retroperitoneal neurilemmoma

目的:回顾性分析腹膜后良性神经鞘瘤的CT表现,以提高其诊断准确性。方法:经手术病理证实的腹膜后良性神经鞘瘤19例。CT图像分析包括:肿块形状、大小、境界、质地、强化程度等。结果:肿瘤呈圆形或椭圆形,均位于脊柱旁;平均直径6.8cm;边界光整;肿瘤呈囊实性16例(84.2%),完全囊性1例(5.3%),完全实性2例(10.5%);增强扫描肿瘤轻度至明显强化不一,呈片状或条状强化。结论:神经鞘瘤影像表现较具特征性,CT可清楚显示肿瘤部位、大小、边缘、肿瘤内部结构及对邻近脏器的压迫和侵犯等情况。

Objective：To study the CT features of benign retroperitoneal neurilemmoma. Methods：CT findings of benign retroperitoneal neurilemmoma in 19 cases confirmed by pathology were analyzed retrospectively. Results： 19 cases showed as round or round-like lesion and beside the spine. The mean tumor diameter was 6.8 cm with clear margin. There were 2. 1,16 lesions with solid, cystic and solid with cystic change, respectively. The lesions demonstrated as slightly to obviously enhancement after injecting contrast agent. Conclusion： Benign retroperitoneal neurilemmoma has relatively characteristic image features. CT can display the lesion＇s location, size, margin, structure, et al.