阑尾黏液囊肿8例影像分析  

Image Analysis in 8 Cases with Appendiceal Mucocele

作　　者：袁亚峰[1] 刘爱玲[2] YUAN Ya-feng;LIU Ai-ling(Department of Radiology,Rugao TCM Hospital,Rugao 226500,Jiangsu Province,China)

机构地区：[1]如皋市中医院放射科,江苏如皋226500 [2]如皋市中医院病理科,江苏如皋226500

出　　处：《罕少疾病杂志》2020年第6期44-46,102,共4页Journal of Rare and Uncommon Diseases

摘　　要：目的分析阑尾黏液囊肿的CT和MRI表现,以提高认识和诊断水平。方法回顾性分析8例经手术病理证实的阑尾黏液囊肿的影像资料及临床表现。结果黏液性囊腺瘤4例,低级别黏液性肿瘤3例(1例伴腹腔假性黏液瘤),黏液性囊腺癌1例。6例CT主要表现为右下腹圆形、类圆形或管状囊性低密度影,边缘光整,密度较均匀,CT值0Hu^20Hu,其中2例囊壁见斑点状及环形钙化;1例腹腔假性黏液瘤表现为腹腔多发形态不规则混合密度肿块影,囊性成分为主,部分内见分隔及散在斑点状钙化,肝周见扇贝样压迹,阑尾显示不清;1例巨大阑尾黏液性囊腺瘤MRI表现为盆腔囊性信号肿块影,信号均匀,边缘清晰,未见分隔及壁结节,增强后囊壁均匀强化。结论阑尾黏液囊肿CT与MRI表现具有一定特征性,对诊断和鉴别诊断具有重要价值。Objective To analyze the CT and MRI findings of appendiceal mucocele,and to improve understanding and diagnostic level for this disease.Methods Retrospectively analysis of clinical and imaging data of 8 cases with appendiceal mucocele confirmed by operation and pathology.Results There are 4 cases with mucinous cystadenoma,3 cases with low-grade mucinous tumors(1 casewas simultaneouslyaccompaniedwith pseudomyxoma peritonei),and 1 case with mucinous cystadenocarcinoma.CT imaging findings of 6 casesinclude the following features:round,oval or tubulovesicular low density images in right lower quadrant with well-defined smooth border and uniform density.CT value is 0Hu^20Hu.spot-like and annular calcifications in cyst wall were found in 2 cases of them;The CT imaging findings of 1 case with pseudomyxoma peritonaeiinclude the following features:multipleabdominal masses with irregular shape and mixture densities,mainly cystic components,partly with separation and scattered spot-like calcifications,scalloped impression around the liver,and the appendix was not clearly demonstrated;The MRI imaging findings of 1 case with huge appendix mucinous cystadenomainclude the following features:pelvic cystic signal masseswith homogeneous signal and clear edge,separations or wall nodules were not found,homogeneousenhancement was foundon enhancement scan.Conclusion CT and MRI imaging findings of appendiceal mucocele are typical,and has an important value in its diagnosis and differential Diagnosis.

关 键 词：阑尾 黏液囊肿 体层摄影术 X线计算机 磁共振成像 

分 类 号：R735.3[医药卫生—肿瘤] R445.3[医药卫生—临床医学]