摘要
目的分析胰头部肿块型慢性胰腺炎和胰头癌的CT表现及鉴别要点,以提高其CT诊断和鉴别诊断能力。资料与方法对15例胰头部肿块型胰腺炎和12例胰头癌患者的CT资料进行回顾性分析,所有病例均行平扫与增强扫描。层厚、间距5~8mm。结果胰头部肿块型胰腺炎与胰头癌主要CT征象分别为:(1)增强扫描动脉期病灶呈低、低与等密度(2例,8例),其余13例胰头部肿块型胰腺炎表现为动脉期病灶轻微强化,静脉期及延迟期逐渐强化;(2)胰管与胆管均扩张(6例,8例);(3)胆总管下段扩张突然狭窄截断(0例,7例);(4)胰周大血管侵袭、包绕、包埋(0例,6例)。结论胰头癌的血供特点与生物学行为是其与胰头部肿块型胰腺炎CT鉴别的重要依据。
Objective To analyze CT characteristics of pancreatic carcinoma and chronic pancreatitis with mass in the head of the pancreas in order to improve its CT differential diaguostic accuracy. Materials and Methods CT findings of 15 cases with chronic pancreatitis with mass and 12 cases with pancreatic carcinoma in the head of the pancreas were retrospectively analyzed. Both plain and enhanced CT scanning were performed in all cases. Both the slice thickness and interval were of 5 - 8 mm. Results The main CT sigus of chronic pancreatitis with mass and pantreatic carcinoma in the head of the pancreas was followed respectively: .( 1 ) Lesions in enhanced imaging presented hypodensity or mixed density( 2 cases and.8 cases) ; (2) Both pancreatic duct and bile duct were dilated (6 cases and 8 cases) ; (3)The lower part of dilated common bile duct were suddenly obstructed( 0 case and 7 cases) ; (4) Peripancreatic blood vessels were invaded or surrounded (0 case and 6 cases). Conclusion Characteristics of blood supply and biological behavior of pancreatic carcinoma with mass in the head of the pancreas are of important basis in CT distinguishing pancreatic carcinoma from chronic pancreatitis with mass in the head of the pancreas.
出处
《临床放射学杂志》
CSCD
北大核心
2008年第2期198-200,共3页
Journal of Clinical Radiology
关键词
慢性胰腺炎
胰头癌
体层摄影术
X线计算机
Chronic pancreatitis Pancreatic carcinoma Tomography, X-ray Computed