Imaging Findings of Primary Splenic Lymphoma: A Review of 17 Cases in Which Diagnosis Was Made at Splenectomy

被引:35
|
作者
Li, Meng [1 ]
Zhang, Li [1 ]
Wu, Ning [1 ,2 ]
Huang, Wenting [3 ]
Lv, Ning [3 ]
机构
[1] Chinese Acad Med Sci, Canc Hosp, Peking Union Med Coll, Dept Diagnost Radiol, Beijing 100730, Peoples R China
[2] Chinese Acad Med Sci, Canc Hosp, Peking Union Med Coll, PET CT Ctr, Beijing 100730, Peoples R China
[3] Chinese Acad Med Sci, Canc Hosp, Peking Union Med Coll, Dept Pathol, Beijing 100730, Peoples R China
来源
PLOS ONE | 2013年 / 8卷 / 11期
关键词
MALIGNANT-LYMPHOMA; EXTRANODAL INVOLVEMENT; SPLEEN; CT;
D O I
10.1371/journal.pone.0080264
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Purpose: This study sought to characterize the imaging features of primary splenic lymphoma (PSL). Materials and Methods: Pathological and imaging data from 17 patients with primary splenic lymphoma initially diagnosed at splenectomy were retrospectively analyzed. Pretreatment computed tomography (CT) imaging was available for 16 patients, and magnetic resonance imaging (MRI) data were available for 4 patients. Splenic lymphoma imaging data were categorized based on the gross pathological presentation in the following manner: type 1, homogeneous enlargement; type 2, miliary nodules; type 3, multifocal masses of varying size; and type 4, solitary large mass. Results: Of the 17 patients with PSL, 16 cases were non-Hodgkin lymphoma, and of these, 9 cases were diffuse large B cell lymphomas (DLBCL) and 4 cases were splenic marginal zone B-cell lymphoma (SMZL). Imaging showed the following types of PSL presentation: 1 case of type 1, 0 cases of type 2, 4 cases of type 3, and 12 cases of type 4. There was evidence of necrosis in 12 cases (70.6%), and there was evidence of mild enhancement in enhanced CT in 14 cases and in enhanced MRI in 3 cases. Prior to surgery, PSL was considered possible in 8 patients. Conclusion: The most frequent histological subtype was DLBCL, followed by SMZL. In both CT and MRI, PSL generally presents as a solitary mass or masses rather than as splenomegaly. In addition, necrosis and mild enhancement are commonly observed, and splenectomy may be required to confirm the diagnosis.
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页数:5
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