胰腺实性假乳头状瘤的CT诊断价值及鉴别诊断.docVIP

精品论文 参考文献 胰腺实性假乳头状瘤的CT诊断价值及鉴别诊断 路丽娜 　　济宁市第一人民医院放射科 272100 　　摘要：目的 研究胰腺实性假乳头状瘤的CT表现特征，探讨多层螺旋CT对胰腺实性假乳头状瘤的诊断价值。方法 回顾分析经手术病理证实的6例胰腺实性假乳头状瘤患者的CT表现和临床资料。结果 1例病灶位于胰头，3例病灶位于胰体，2例病灶位于胰尾，瘤体直径约2 -10cm，平均约5.8cm，CT表现：4例为囊实性混合病灶，圆形或椭圆形，2例病灶内以实性结构为主。CT平扫实性结构低于周围正常胰腺组织的密度，增强扫描后实性部分早期轻度强化，后期呈渐进性、充填式强化。囊变区始终不强化，肿瘤均来源于胰腺，有完整包膜，不伴有胆总管及胰管扩张，不侵及胰周围组织。结论 胰腺实性假乳头状瘤的螺旋CT表现有一定特征性，对临床诊断及治疗具有重要的指导意义，同时需要与粘液性/浆液性胰腺囊腺瘤，囊腺癌相鉴别。 　　关键词：胰腺实性假乳头状肿瘤；X线计算机体层摄影术 　　【Abstract】Objective To study solid pseudopapillary tumor of pancreas（SPTP）CT features and explore the diagnosis value of the multi-slice CT for SPTP.Methods To retrospective analysis CT findings and clinical data of six patients who were pathologically confirmed of SPTP.Results One case of lesions located in the pancreatic head，three cases of lesions located in the pancreatic body，two cases of lesions located in the tail of the pancreas，tumor diameter of about 2-10cm，an average of about 5.8cm，CT manifestations：four cases of mixed solid and cystic lesions，round or oval shaped，two cases of lesions in real structure based.CT scan of solid structure showed the density was lower than the surrounding normal pancreatic tissue，enhanced scan of the solid portion in early stage showed mild enhancement，the latter stage was gradual，filling tempered.Cystic areas still did not strengthened，tumors were derived from the pancreas with a complete capsule，not associated with the common bile duct and pancreatic duct dilatation，did not invade surrounding tissue.Conclusion The spiral CT manifestations of SPTP have certain characteristic image，and provide advising for the diagnosis and treatment，meanwhile we also need make a difference with mucinous / serous pancreatic cystadenoma and cystadenocarcinoma. 　　【key words】solid pseudopapillary tumor of pancreas X-ray computed tomography 　　胰腺实性假乳头状瘤（Solidpseudopapillary tumour of thepancreas，SPTP）是一种少见的胰腺肿瘤，近年来逐渐被临床、影像和病理学科所关注，1996年WHO将其正式命名并划归至胰腺外分泌肿瘤，占胰腺外分泌肿瘤的1%-2%，组织来源尚不清楚，其被认为是一种低度恶性或交界性肿瘤，多好发于青年女性。在临床表现和组织病理学上，SP