摘要
目的:分析卵巢、输卵管肿块的CT和MRI表现。方法:搜集经手术病理证实的卵巢、输卵管良、恶性肿瘤和炎性包块等共65例,全部病例做了CT检查,其中19例做了MRI检查。结果:①原发性卵巢恶性肿瘤(n=18)多为囊性或囊实性(16/18),可伴有临近器官侵犯、淋巴结肿大(9/18)及腹膜线状强化(3/18)等表现;②转移性卵巢肿瘤(n=11)特征性表现有肠系膜、大网膜增厚及腹膜线状强化(4/11);③腺纤维瘤(n=2)CT值及MRI信号与子宫相似;④卵泡膜细胞瘤(n=3)表现为巨大(直径>10cm)囊性或囊实性;⑤畸胎瘤(n=14)特征性表现为同时见多种组织成分(6/14);⑥卵巢脓肿(n=3)及结核(n=3)呈囊性或实性包块,与卵巢癌相似;⑦输卵管妊娠(n=2)为不均匀强化的圆形或条形软组织肿块。结论:①卵巢良、恶性肿瘤的CT、MRI表现有一定的特征性,腹膜的线状强化是腹腔转移的征象之一;②畸胎瘤是最具特征性的肿瘤;③脓肿或增殖型结核与卵巢肿瘤相似;④输卵管妊娠CT、MRI的定性诊断有一定的局限性。
Objeetive..To analyze respectively CT and MRI findings of tubo-varians masses. Methods：Sixty-five cases of tubo-ovarian masses proved by pathological examination were analyzed. All cases underwent CT scan,and 19 of them received MRI examinations. Results：①Primary and metastatic ovarian tumors（n= 18） showed： cystic or cystic-solid masses, some combined with pelvic organs and pelvic sidewall invasion, lymphadenectasis, and peritoneum linear enhancement in string shape;②metastatic ovarian tumors （n= 11） were characterized by thickening of mesenterium and omentum, and peritoneum linear enhancement in string shape;③Adenofibroma （n= 2） exhibited similar uterus density on CT and lower signal intensity on MRI （both T1W1 and T2WD; ④ Thecomas （n= 3） were cystic or solid, the lauer showed granular enhancement;⑤ Teratomas （n = 14 ） were the most special, characterized by possessing multitissues ; ⑥ Tubo-ovarian abscesses （n= 3） and tuberculosis （n = 3） manifested inhomogeneous soft tissue masses mimicking ovarian neoplasm;⑦ fallopian tube pregnancies（n=2） took up masses in round or cord shape,the low density loci can be found out of the midst of the masses. Condusion.：①Ovarian tumors usually display some characteristics on CT and MRI,peritoneal linear and nodular enhancement were important signs for malignant ovarian tumors;②teratoma possesses its special characters; ③chronic tubo-ovarian abscess or prolife-rative tuberculosis resemble ovarian tumors;④fallopian tube pregnancy happening in child-bearing period woman is sometimes difficult to diagnose if only depending on CT or MRI.
出处
《放射学实践》
2006年第4期376-379,共4页
Radiologic Practice
关键词
X线计算机
体层摄影术
磁共振成像
卵巢肿瘤
Tomography,X-ray computed
Magnetic resonance imaging
Ovarian neoplasms
