扁桃体非霍奇金淋巴瘤的CT表现  

CT Features of Non-Hodgkin's Lymphoma(NHL) in Tonsil

作　　者：丁莹莹[1] 李鵾[1] 谭静[1] 封俊[1] 

机构地区：[1]云南省肿瘤医院放射科,昆明650118

出　　处：《放射学实践》2008年第10期1083-1085,共3页Radiologic Practice

摘　　要：目的:研究扁桃体非霍奇金淋巴瘤(NHL)的CT表现,以提高诊断及鉴别诊断的准确性。方法:回顾性分析23例扁桃体NHL的CT表现和手术、病理结果。结果:23例中单侧扁桃体受累22例,仅1例表现为双侧扁桃体受累。表现为扁桃体类圆形软组织肿块,大小平均为2.6cm×3.1cm;边界清楚18例占78.3%,5例边界不清;17例密度均匀占73.9%,密度不均匀6例。增强后呈轻至中度强化。23例中13例占56.5%于肿块前份周边部或中心见小圆形低密度气体影。未发现坏死、囊变或钙化。无咽旁间隙和邻近结构受侵。23例扁桃体NHL中有15例发现颈部淋巴结侵犯,侵犯率约65.2%。结论:扁桃体肿块密度均匀,边界光整,轻至中度强化,肿块前份边缘部或中央区见小圆形气体影,无咽旁间隙受侵是扁桃体NHL的典型CT表现,这些特征有助于与扁桃体癌的鉴别。Objective：To study the CT findings of Non-Hodgkin＇s lymphoma （NHL） in tonsil and to improve the accuracy of diagnosis and differential diagnosis. Methods： 23 cases with NHL in tonsil were retrospectively analyzed about their CT findings and pathological results. Results： Of 23 cases, 22 cases involved the unilateral tonsil,only 1 case involved bilateral tonsils. All of the lesions manifested round-like soft tissue masses, the average size being 2.6cm× 3.1 cm;the margin of 18 cases was clear （78.3%）,5 cases unclear,the density of 17 cases was homogeneous （73.9%）,6 cases inhomogeneous. Lesions showed mild to moderate enhancement on postcontrast images. Small round-shape low-density air images were found in periphery or center of tumor in about 56.5 % （13/23）. Necrosis,cystic degeneration and calcification were not found. The parapharyngeal space and nearby structures were not involved. 15 cases were found cervical lymph nodes metas tasis, the metastasis rate was 65.2%. Conclusion： There are some typical features of NHL in tonsil, including the homogeneous density, clear margin, mild to moderate enhancement, and small round-shape low-density air images. Parapharyngeal space is not involved. These features are of important value for diagnosis of NHL in tonsil and differential diagnosis with other tumors in tonsil.

关 键 词：扁桃体 淋巴瘤 体层摄影术 X线计算机 

分 类 号：R739.6[医药卫生—肿瘤]