CAJ | 학술논문

目的：探讨卵巢囊性腺纤维瘤的M RI表现特征及病理学基础，提高对该疾病的诊断准确性。方法收集并回顾性分析14例经手术病理证实的卵巢囊性腺纤维瘤患者M RI资料，所有患者术前均行M R平扫及增强扫描。重点对病变内部结构、信号特征及增强表现进行分析归纳，明确其具有诊断价值的图像特征。结果本组13例病灶为单侧发病，1例为双侧发病。病灶最大径为3．4～14．8cm ，平均约8．15cm ；8例呈囊性（多囊者6例，单囊者2例），5例呈囊实性，1例呈实性。8例囊性病变于M RI-T2 WI囊壁及分隔呈低信号；囊实性病灶实性成份主要表现为低信号，其中并见多发小囊样高信号灶，其中2例形成较典型的“黑色海绵征”。MR增强扫描所有病灶实性成份及囊壁均呈中度或明显强化效应。结论卵巢囊性腺纤维瘤多为单侧发病，主要呈多囊性表现；肿瘤中实性成份及囊壁T2 WI呈低信号，增强扫描呈轻中度强化。“黑色海绵征”是其较典型的特征表现。
목적：탐토란소낭성선섬유류적M RI표현특정급병이학기출，제고대해질병적진단준학성。방법수집병회고성분석14례경수술병리증실적란소낭성선섬유류환자M RI자료，소유환자술전균행M R평소급증강소묘。중점대병변내부결구、신호특정급증강표현진행분석귀납，명학기구유진단개치적도상특정。결과본조13례병조위단측발병，1례위쌍측발병。병조최대경위3．4～14．8cm ，평균약8．15cm ；8례정낭성（다낭자6례，단낭자2례），5례정낭실성，1례정실성。8례낭성병변우M RI-T2 WI낭벽급분격정저신호；낭실성병조실성성빈주요표현위저신호，기중병견다발소낭양고신호조，기중2례형성교전형적“흑색해면정”。MR증강소묘소유병조실성성빈급낭벽균정중도혹명현강화효응。결론란소낭성선섬유류다위단측발병，주요정다낭성표현；종류중실성성빈급낭벽T2 WI정저신호，증강소묘정경중도강화。“흑색해면정”시기교전형적특정표현。
Objective To study the MRI features of ovarian cystadenofibroma and to analyze their pathologic basis in or-der to improve the diagnostic accuracy .Methods The MR images of 15 cases pathologically proven cystadenofibroma were enrolled and reviewed ,with a focus on the internal architecture ,signal intensity and enhancement feature .For all cases , the MRI data including plain scan and enhanced scan were obtained pre-operation .Results All the tumors were unilateral except for 1 case ,and the maximum diameter ranged from 3 .4~14 .8 cm ,with an average of 8 .15 cm .8 cases appeared as cystic lesions (8/14) ,including 6 cases of multilocular cysts and 2 cases of single cyst .The cyst wall and interval of multi-locular cystic masses were shown hypo-intensity .5 cases appeared as cystic and as solid mixed masses(5/14) ,and a single solid mass .In all solid and cystic masses ,solid component was demonstrated hypo-intensity and was mixed with multiple tiny hyper-intensity cystic areas on MR-T2 weighted imaging .Among those ,2 cases showed“black sponge sign” .On con-trast enhanced images of all masses ,the soild components and cyst walls were shown mild contrast enhancement .Conclu-sion Ovarian cystadenofibroma is often unilateral ,and usually present multilocular cystic masses .The solid components and cyst wall are demonstrated hypo-intensity on T2 weighted image and strong enhancemen .In additon ,“black sponge sign”is the typical finding for ovarian cystadenofibroma .