Kawakami S, Togashi K, Kimura I, Nakano Y, Koshiyama M, Takakura K, Konishi I, Mori T, Konishi J
Department of Radiology, Faculty of Medicine, Kyoto University, Japan.
Radiology. 1993 Feb;186(2):503-8. doi: 10.1148/radiology.186.2.8380649.
Primary malignancy of the fallopian tube is a rare entity. To determine the radiologic characteristics of the tumor, 10 patients with pathologically confirmed fallopian tube malignancy (nine with adenocarcinoma and one with mixed müllerian tumor) underwent magnetic resonance (MR) imaging and computed tomography (CT). With both CT and MR imaging, the lesion appeared relatively small, solid, and lobulated when not associated with hydrosalpinx. At CT, the lesion had an attenuation equal to that of other nonspecific soft-tissue masses and enhanced less than myometrium. On T1-weighted MR images the tumor was usually hypointense, and on T2-weighted images the tumor was most often homogeneously hyperintense. Associated CT and MR imaging findings were peritumoral ascites (four cases), intrauterine fluid collection (two cases), and hydrosalpinx (one case). MR findings allowed the lesion to be distinguished from uterine leiomyoma in three cases in which pelvic examination, ultrasound, and CT findings were equivocal.
原发性输卵管恶性肿瘤是一种罕见的疾病。为了确定该肿瘤的影像学特征，对10例经病理证实的输卵管恶性肿瘤患者（9例为腺癌，1例为混合性苗勒管肿瘤）进行了磁共振（MR）成像和计算机断层扫描（CT）检查。在CT和MR成像中，当病变不伴有输卵管积水时，表现为相对较小、实性且分叶状。在CT上，病变的密度与其他非特异性软组织肿块相同，强化程度低于子宫肌层。在T1加权MR图像上，肿瘤通常呈低信号，在T2加权图像上，肿瘤最常呈均匀高信号。相关的CT和MR成像表现包括瘤周腹水（4例）、宫腔积液（2例）和输卵管积水（1例）。在3例盆腔检查、超声和CT检查结果不明确的病例中，MR表现有助于将病变与子宫平滑肌瘤区分开来。
