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目的探讨胰腺导管内乳头状黏液肿瘤的CT和MRI表现,分析其诊断要点。方法回顾性分析12例经手术切除和病理学证实的胰腺导管内乳头状黏液肿瘤的临床、CT和MRI资料。结果(1)分支胰管型7例,均位于胰头和钩突,CT和MRI主要表现为分叶状或葡萄串样囊性病变,其间可见分隔,增强后囊性区域无强化,囊壁和分隔可强化。(2)混合型5例,4例为胰头或钩突分支胰管扩张合并主胰管扩张;1例同时伴有胰体分支胰管扩张,扩张的主胰管直径为4-7 mm。(3)该病多发于老年人,临床主要表现为腹痛和胰腺炎。结论胰腺导管内乳头状黏液肿瘤有相对特征性的影像学表现,CT和MRI对其诊断有重要价值。
Objective To investigate the CT and MRI findings of intraductal papillary mucinous neoplasm in pancreatic duct and analyze the main points of diagnosis. Methods The clinical, CT and MRI data of 12 cases of intraductal papillary mucinous neoplasm confirmed by surgical resection and pathology were retrospectively analyzed. Results (1) Branch and pancreatic duct in 7 cases, both located in the head and the uncinate process, CT and MRI showed mainly lobulated or grape-like cystic lesions, during which the separation can be seen, enhanced cystic area without enhancement, wall And separation can be enhanced. (2) Mixed type 5 cases, 4 cases of pancreatic duct or uncinate process branch of pancreatic duct dilatation combined with dilatation of the main pancreatic duct; 1 case accompanied by pancreatic duct branch pancreatic duct dilatation, dilatation of the main pancreatic duct diameter of 4-7 mm. (3) The disease occurs in the elderly, the main clinical manifestations of abdominal pain and pancreatitis. Conclusion The pancreatic ductal papillary mucinous tumors have relatively characteristic imaging findings. CT and MRI are of great value in their diagnosis.