Author(s): LI Jian, HUANG Nan, XIAO Zebin, Department of Radiology, the First Affiliated Hospital of Fujian Medical University
Pages: 1784-1789
Year: 2015 Issue:  11
Journal: Journal of Clinical Radiology
Keyword:  Small intestinal lymphoma; Tomography; X-ray computed; Magnetic resonance imaging;
Abstract: Objective To investigate the CT and MRI imaging findings of small intestinal lymphomas and the radiological pathological correlation. Methods The CT and MRI imaging data of 28 small intestinal lymphomas confirmed by pathology were analyzed retrospectively. Results Non- Hodgkin’s lymphomas were confirmed in all 28 cases,24 of which were B cell type and 4 were T cell type. 41 multifocal lesions were detected and were divided into 4 types including infiltrating form( 30 lesions),mesenteric form( 7 lesions),cavitary form( 3 lesions) and nodular type( 1 lesion). 6 cases showed aneurismal dilatation of the lumen. Lymphadenopathy was noted in 20 cases,8 of which encase the mesenteric vessels and produce the"sandwich sign". Other organs were involved in 7 cases. With regard to the radiological pathological correlation,12 of 14 diffuse large B cell lymphomas occurred in the ileum,3 of 4 T cell lymphomas occurred in the jejunum and 1 in the duodenum. Bowel wall thickening were not severe in 2 of the 4 T cell lymphomas. None of the 14 diffuse large B cell lymphomas was perforated. Lymphadenopathy was non bulky in 3 of the 4 T cell lymphomas. Conclusion Involvement of longer segment,"aneurismal dilatation"of the lumen,and the"sandwish"sign produced by vessel encasement of bulky lymphadenopathy can favor the diagnosis of small intestinal lymphoma.