摘要
目的分析胰腺腺鳞癌磁共振成像（MRI）的影像表现，总结具有诊断价值的MRI征象。方法回顾性分析2010年8月至2017年6月在复旦大学附属中山医院经病理证实的20例胰腺腺鳞癌患者的MRI资料。图像分析包括肿瘤部位、大小、形态、边界、信号、强化特点、胆管及主胰管扩张、胰腺萎缩、胰腺外侵犯、淋巴结转移及肝脏转移情况。结果20例胰腺腺鳞癌患者的病灶均为单发，病灶最大径（范围）为（3.39±1.17） cm（1.37～5.87 cm）。病灶位于胰头部12例，位于胰体尾部8例。病灶表现为类圆形11例，病灶表现为不规则形9例；病灶边界清晰8例，病灶边界模糊12例。20个病灶T1加权成像为低或稍低信号，T2加权成像为等或稍高信号。18个病灶内可见大小不等囊变坏死区，2例为完全实性病灶。19例患者动态增强扫描表现为不均匀强化，呈环状或分隔样，强化由肿瘤周边开始，呈渐进性增强，肿瘤内明显强化的区域接近或超过正常胰腺组织的信号强度。结论胰腺腺鳞癌易发生囊变坏死，其MRI增强图像具有一定的特征性。
ObjectiveTo analyze magnetic resonance imaging （MRI） features of adenosquamous carcinoma of the pancreas and to summarize MRI signs with diagnostic value.MethodsFrom August 2010 to June 2017, at Zhongshan Hospital Affiliated to Fudan University, the MRI data of 20 patients with pathologically diagnosed adenosquamous carcinoma of pancreas were retrospectively analyzed. The image analysis included tumor location, size, morphology, lesion borders, signal intensity, enhancement pattern, bile duct and main pancreatic duct dilatation, pancreatic atrophy, extrapancreatic invasion, lymph node metastasis and liver metastasis.ResultsThe lesions of all the 20 patients with pancreatic adenosquamous carcinoma were single, and the diameter was （3.39±1.17） cm （1.37 to 5.87 cm）. The lesions of 12 patients were located in the head of pancreas, and eight cases were located in body and （or） tail. Eleven lesions were round and nine lesions were irregular. Eight lesions had clear lesion boundaries, and 12 lesions had blurred lesion boundaries. The imagines of 20 lesions showed slightly lower or hypointensity signal on T1 weighted imaging （T1WI）, and equal or slightly higher signal on T2 weighted imaging （T2WI）. There were different sizes of necrosis or cystic areas in 18 lesions, and two lesions were complete solid masses. The imagines of 19 lesions showed uneven enhancement during dynamic enhanced scan, which were ring-shaped or separated. The enhancement started from the periphery of tumors, and the signal intensity of the enhanced areas within the lesions approached or exceeded the signal intensity of the normal pancreatic tissue.ConclusionPancreatic adenosquamous carcinoma is prone to cystic necrosis, and its enhanced MRI imaging has certain characteristics.
作者
鲁璎
姚家美
王明亮
曾蒙苏
Lu Ying;Yao Jiamei;Wang Mingliang;Zeng Mengsu(Department of Radiology,Fuzhou the Second Hospital Affiliated to Xiamen University,Fuzhou 350007,China)
出处
《中华消化杂志》
CAS
CSCD
北大核心
2018年第10期682-686,共5页
Chinese Journal of Digestion
关键词
胰腺
癌
腺鳞状
磁共振成像
Pancreas
Carcinoma, adenosquamous
Magnetic resonance imaging
