摘要
目的探讨进展期胃癌(AGC)与原发性胃淋巴瘤(PGL)中上腹淋巴结转移的CT表现差异。方法回顾性分析经病理证实且有中上腹淋巴结转移的61例AGC和17例PGL患者的中上腹CT表现,对比分析转移淋巴结的部位、大小、数目、形态、密度及强化方式。结果 AGC中上腹淋巴结转移以肝胃韧带(44/61,72.13%)、贲门周围(28/61,45.90%)、腹腔干周围(27/61,44.26%)、胃结肠韧带(18/61,29.51%)和肝十二指肠韧带及胰头周围(18/61,29.51%)发生率较高,PGL则以肝胃韧带(15/17,88.24%)、肝十二指肠韧带及胰头周围(9/17,52.94%)、胃结肠韧带(8/17,47.06%)、腹腔干周围(8/17,47.06%)和腹主动脉周围下部(8/17,47.06%)发生率较高;PGL腹主动脉周围下部淋巴结转移率较高(χ2=4.606,P=0.032),转移淋巴结最大短轴径(MSAD)≥2.5cm的比例高于AGC,强化较均匀,坏死少见(P均<0.001)。结论与AGC相比,PGL更易引起腹主动脉周围下部淋巴结肿大,MSAD≥2.5cm的淋巴结比例较高,强化较均匀而坏死较少。
Objective To observe MSCT manifestations of upper middle abdominal lymph nodes in advanced gastric carcinoma （AGC） and primary gastric lymphoma （PGL）. Methods MSCT findings of upper middle abdominal lymph nodes were reviewed in 61 patients of AGC and 17 patients of PGL confirmed histopathologically. The location, size, number, shape, density and patterns of metastastic lymphnodes were observed. Results The predominant site of metastastic lymphnodes in AGC was hepatogastric ligament （44/61, 72.13%）, followed by cardiac orifice （28/61, 45.90%）, celiac trunk （27/61, 44.26%）, gastrocolic ligament （18/61, 29.51%） and hepatoduodenal ligament and head of pancreas （18/61, 29.51%）, while metastastic lymphnodes of PGL were common seen in hepatogastric ligament （15/17, 88.24%）, hepatoduodenal ligament and head of pancreas （9/17, 52.94%）, gastrocolic ligament （8/17, 47.06%）, celiac trunk （8/17, 47.06%） and lower paraaortic area （8/17, 47.06%）. The transfer probability to lower abdominal aorta of PGL was larger than that of AGC （χ2=4.606, P=0.032）. The proportion of metastastic lymphnodes with maximum short axis diameter （MSAD） ≥2.5 cm in PGL was larger than that in AGC. Compared with AGC, metastastic lymphnodes in PGL enhanced more homogeneously and had less necrosis （all P〈0.001）. Conclusion The transfer probability to lower abdominal aorta of PGL is stronger than that of AGC. Compared with AGC, PGL causes more metastastic lymphnodes with MSAD ≥2.5 cm, which enhancing more homogeneously and having less necrosis.
出处
《中国医学影像技术》
CSCD
北大核心
2013年第2期234-238,共5页
Chinese Journal of Medical Imaging Technology
关键词
胃肿瘤
淋巴瘤
淋巴结
肿瘤转移
体层摄影术
X线计算机
Stomach neoplasms
Lymphoma
Lymph nodes
Neoplasm metastasis
Tomography, X-ray computed
