摘要
目的探讨胃肠道淋巴瘤的X线、CT表现及特征。资料与方法回顾性分析经病理证实的41例胃肠道淋巴瘤患者的X线、CT资料,其中原发性36例,继发性5例。胃22例,肠道19例。归纳总结其影像表现及特征。结果41例中除5例病理诊断恶性淋巴瘤后未继续分型,余36例均为非霍奇金淋巴瘤,其中B细胞来源33例(91.7%),T细胞来源3例(8.3%)。胃淋巴瘤的X线表现及特征有:孤立充盈缺损区内有增粗隆起的胃黏膜,并与正常胃黏膜移行相连;充盈缺损区内有结节状隆起的"鹅卵石征";龛影周围环堤的内外缘光整;胃壁广泛浸润,胃腔不狭窄或狭窄不明显;胃内跳跃病灶,病灶之间是正常胃结构;病变区胃壁柔软或有一定舒缩变化;胃淋巴瘤的CT表现及特征有:弥漫或局限性胃壁明显增厚,厚度1.1～5.8cm,平均2.5cm,增厚的内缘呈波浪样或分叶状,外缘清楚,周围脂肪间隙存在。肿块密度均匀,增强扫描呈轻中度均匀强化,并发现"肿瘤覆盖黏膜征"。肠道淋巴瘤的影像表现及特征有:肠壁厚度2～6cm,平均3.4cm。病灶长度7～10cm或广泛难以测量。增厚的肠壁内缘高低不平,可有不同程度狭窄,但梗阻不明显,增强扫描呈轻中度强化,特征性表现是肠壁呈动脉瘤样扩张。结论胃肠道淋巴瘤有较明显的X线、CT表现及特征,正确认识和掌握这些征象有助于对胃肠道淋巴瘤的诊断。
Objective To discuss the X-ray and CT features of gastrointestinal lymphoma in order to improve the diagnosis. Materials and Methods Forty-one cases with gastrointestinal lymphoma proved by pathology were enrolled in this study. Of the 41 patients, there were primary lymphoma in 36, secondary lymphoma in 5. The gastrointestinal lymphomas involved the stomach in 22 patients, the intestinal tract in 19. The X-ray and CT findings of these cases were retrospectively analyzed. Results Among the lesions, 5 cases didnt classify into the following categories by pathology and 36 cases were non Hodgking lymphoma （NHL） , of which B cell type NHL in 25 （91.7%） and T cell type NHL in 3 （8.3%）. On X-ray, the gastric lymphomas were characterized： In the solitary filling defect area, ＂ cobblestone appearance＂ signs were showed with the gastric mucosa incrassate and raised, which stretched and connected with the around normal gastric mucosa. The annular dikes round the ulcers has clear margins. The gastric walls extensively involved, but showed soft and without gastral cavity obviously stenosis. The gastric lesions were skipped, between lesions there were normal gastric walls. The gastric lymphoma CT findinds were found： The involved gastric walls showed diffused or localized thickening （thickness： 1.1 - 5.8 cm, average ： 2.5 cm）. The inner margin showed waved or lobulated shape and the exterior margin was clearly with perigastric fat existing. These tumors showed homogeneous density and light or moderate enhancement, and ＂ tumor cover mucosa＂ signs were appeared. The intestinal lymphoma features were found： The involved bowel walls＇ extent of 2 to 6 cm（ average 3.4 era） thick and 7 - 10 cm long or too diffused to be measured. The inner margin of the lesions were irregular. The intestinal cavity showed slight stenosis without obvious obstruction. Aneurysmal dilatation were the characteristic sign of the intestinal lymphoma. Conclusion The gastrointestinal lymphoma has significant X-ray and CT findings, which have values in the diagnosis of gastrointestinal lymphoma.
出处
《临床放射学杂志》
CSCD
北大核心
2009年第5期663-666,共4页
Journal of Clinical Radiology
关键词
胃肠道
淋巴瘤
影像学
特征
Gastrointestinal tract Lymphoma Imaging Characteristic
