摘要
目的探讨腹部恶性副神经节瘤的CT征象。方法回顾性分析8例经手术和穿刺活检病理证实的腹部恶性副神经节瘤的CT表现,并结合文献进行分析。结果病灶位于腹膜后间隙7例,其中左上腹3例,右上腹3例,右下腹1例;胰头部1例。CT平扫表现为肌肉样软组织肿块,最大径在8～13cm之间,边缘不规则,呈分叶状,密度不均,其内见不规则坏死、囊变,囊内壁不规则,斑点状钙化3例。增强动脉期病灶边缘中、重度强化,门脉期及平衡期强化逐步向内填充。三维重建能显示增粗的肿瘤供血动脉和周围结构关系。肝转移3例,腹膜后淋巴结转移2例。结论腹部恶性副神经节瘤具有肿瘤体积大、边缘不规则、易坏死囊变等CT特点,如发现转移,有助于诊断。
Objective To explore the CT findings of the malignant paraganglioma in the abdomen.Methods The CT findings of the abdominal malignant paraganglioma（n=8）,which were confirmed by pathology after surgery and biopsy,were retrospectively analysed with literatures review.Results The lesions were located in the pancreatic head in one case and in the retroperitoneum gap in 7 cases,including 3 cases in the left upper quadrant,3 cases in the right upper quadrant,1 case in right lower quadrant.The findings of the abdominal malignant paraganglioma displayed soft tissue masses like muscle,between 8~13 cm in the largest diameter,irregular edge and lobulated,uneven density,irregular necrosis,and mottling calcification in 3 cases on CT plain scan.Edge of lesions showed medium,marked enhancement in the arterial phase,and the enhancement of lesions filled inward in the venous and delayed phase.Three-dimensional reconstruction showed increased feeding artery and relationship with the surrounding tissues.Liver metastases（n=3）,retroperitoneal metastatic lymph nodes（n=2） were found.Conclusion CT featuses of abdominal malignant paragangliomas dresents with large size,irregular edge,necrosis,etc.If metastases were found,they will help the diagnosis.
出处
《医学影像学杂志》
2012年第3期413-416,共4页
Journal of Medical Imaging
