【作者】 许玲辉； 彭卫军； 杨天锡； 丁建辉；

【Author】 Xu Ling-Hui Peng Wei-Jun YangTian-Xi Ding Jian-Hui Department of Radiology, The AfflUated Cancer Hosptial of Fu Dan University, 270# Dong An Road, Shanghai, China. 200032

【机构】 复旦大学附属肿瘤医院放射诊断科；

【摘要】 目的:提高对卵巢淋巴瘤的CT,MRI影像表现的认识。方法:回顾性分析5例病理证实的卵巢淋巴瘤,3例CT 检查(其中1例平扫加增强,2例直接增强扫描),2例MRI 检查(平扫加增强)。CT或MRI评估肿瘤形态,密度或信号表现,以及有无淋巴结肿大。结果:(1)4例B细胞性NHL(其中1例为Burkitt淋巴瘤),1例外周T细胞性NHL。(2)5例中未见原发性卵巢淋巴瘤。(3)盆腔双侧肿块3例,单侧肿块1例, 多发肿块1例。最大直径4．5 cm—17cm。平均直径7．4cm。 5例中4例边缘清晰,圆形或卵圆形,各1例,分叶状2例; 1例边缘欠清,分叶状,与周围组织略见粘连。(4)CT表现:CT 平扫1例病灶为等密度,未见钙化;增强扫描表现为1例均匀强化,2例轻至中度强化伴少许斑片状低密度影。(5)MRI表现:2例MR T1WI为均匀低信号,T2WI为均匀稍高信号, 增强后1例轻度均匀强化,1例边缘不规则中度环形强化。(6) 5例中3例伴大网膜,肠系膜,腹膜后,盆组淋巴结肿大。结论:当盆腔存在双侧肿块,结构均质,无明显坏死,无明显强化,伴肠系膜,腹膜后,盆组等部位淋巴结肿大,提示卵巢淋巴瘤可能。更多还原

【Abstract】 Objective: To evaluate CT and MR imagings of ovarian non-Hodgkin lymphoma (NHL). Methods: We retrospective analyzed the CT or MRI images of five female patients with pathologically proven NHL of the ovaries. Three cases underwent CT examination (one patient underwent pre-post contrast scan, two patient post contrast scan directly). Two cases underwent MRI examination (pre-post contrast scan). We evaluated morphological and density or signal intensity(SI) findings of the lesions, with or without lymphadenectasis. Results: (1) Four patients were B-cell NHL (one case was Burkitt NHL), one was T-cell NHL. (2) No patient showed a primary involvement of the ovaries. (3) Among the five cases, we found bilateral lesions in 3, unilateral in 1, multiple in 1. The size from 4.5 cm to 17 cm, the mean size of the lesions was 7.4 cm. The four of five patients had well defined margins and were primarily round and oval for each and lobulated for two. The another patient had insufficient defined margins and a little invasion of neighboring structures. (4) CT images: One case of pre-contrast CT showed the mass with isodense without calcification. On post-contrast CT images, one case showed homogeneously enhancement, two cases showed mild to moderate contrast enhancement with bit patching low density. (5) MRI images : Two cases showed homogeneously low SI on T1-weighted images and homogeneously high SI on T2-weighted images. On post-contrast T1-weighted images, one case showed light homogeneously enhancement without margin enhancement and the other case showed moderate heterogeneously enhancement with predominantly margin irregularity enhancement. (6) Three patient had lymphadenectasis in omentum, mesentery, retroperiton-eum. Conclusion: The diagnosis of ovarian lymphoma should be considered in the presence of bilateral solid ovarian masses with homogeneous pattern without obviously necrosis and contrast enhancement, accompanied with lymphadenctasis of colic omentum, mesentery, retroperitoneum, it may be a cue of ovarian lymphoma.更多还原