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目的分析肾上腺嗜铬细胞瘤多层螺旋CT的影像学特点,进行鉴别诊断,提高多层螺旋CT对该病的诊断的准确性。方法回顾性分析经手术和病理证实18例肾上腺嗜铬细胞瘤的患者的影像学的资料。结果 CT示瘤体较大,多成类圆形或卵圆形。瘤体多清晰,肿瘤密度均匀也可不均匀,多数有坏死、囊变区,也可有出血;肿瘤平扫成软组织密度。增强扫描动脉期成明显强化,静脉期强化程度与动脉期相近,延迟扫描CT值下降较慢。三维重建(MPR)得到矢状面和冠状面图像,肿瘤的立体形态显示清晰,肿瘤与周围软组织关系清晰可辨。结论多层螺旋CT扫描及MRP对嗜铬细胞瘤的定性和定位诊断有较高价值。
Objective To analyze the imaging features of multi-slice spiral CT of adrenal pheochromocytoma and to make differential diagnosis and to improve the accuracy of multi-slice spiral CT in the diagnosis of this disease. Methods The imaging data of 18 adrenal pheochromocytomas confirmed by surgery and pathology were retrospectively analyzed. Results CT showed tumor larger, mostly into a round or oval. More clear tumor, tumor density can be uniform, most have necrosis, cystic area, but also have bleeding; tumor plain scan into soft tissue density. Enhance the scan of the arterial phase became significantly enhanced venous phase enhancement and arterial phase similar delayed CT scan value decreased slowly. Three-dimensional reconstruction (MPR) was sagittal and coronal images, the tumor showed a clear three-dimensional morphology, the tumor and the surrounding soft tissue clear and legible. Conclusion Multi-slice spiral CT and MRP have high value for qualitative and localization diagnosis of pheochromocytoma.