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《Journal of Sun Yat-Sen University(Medical Sciences)》 2008-01
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CT Features of 25 Cases with Gastric Lymphomas

LU Yan-chun1, FAN Wei-jun1, LIU Li-zhi1, SHEN Jing-xian1, LI Xian1, ZHANG Yu-jing2( 1. Medical Imaging and Interventional Radiology Center, 2. Department of Radiotherapy, The State Key Laboratory of Oncology in Southern China//Cancer Center, SUN Yat-sen University, Guangzhou 510060, P. R. China )  
[Objectives ] To summarize the CT features of gastric lymphomas for evaluating the diagnosis value of CT on gastric lymphoma. [Methods] CT imagings of 25 cases with gastric lymphomas proved by pathology were reviewed retrospectively. CT findings were observed as following, location, contour, extent, thickness of gastric wall, ectoptygma and fat space, mode of enhancement, involvement of the other organs, and enlargement of lymph nodes. The CT findings correlated to the pathologic types were analyzed respectively. [Results] All the 25 cases were non-Hodgin's lymphomas (NHL). Most of them located in antrum (18/25,72%) and body of stomach (19/25,76%). The gastric wall thickened to (21.3 ± 12.9) mm inhomogeneously, ranged from 7 mm to 60 mm. The lesions extended over 75% of gastric perimeter in all cases. The lesions in 22 of 25 cases (88%) were enhanced moderately and homogeneously. Twenty-one of 25 cases (84%) had abdominal lymph adenopathy. Thirteen of 25 cases (52%) had lymph adenopathy beneath renal hilum. Most cases (76%, 19/25) had splenomegaly. Necrosis was found in only one case. Ulcer was found in only one case. Involvement to the adjacent organs were founded in 3 (3/25, 12%) cases. Compared with other types of gastric lymphoma, There were some differences in CT features of mucosa associated lymphoid tissue lymphoma (MALT), such as, rarely localized in antrum, the gastric wall,measured at the thickest point, was less than that of other types. [Conclusion] Some features in CT findings of gastric lymphomas were typical. There were some different CT features between MALT and other types of gastric lymphomas. CT was helpful in diagnosis and differential diagnosis of gastric lymphomas.
【Fund】: 广东省医学科研基金(303041096001)
【CateGory Index】: R735.2
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