咽淋巴环原发非霍奇金淋巴瘤MRI征象分析  

MRI Features of Primarily NonHondgkin's Lymphoma ( NHL) in Waldeyer's Ring

作　　者：黄文起[1] 

机构地区：[1]河南省商丘市第一人民医院影像科,476100

出　　处：《临床放射学杂志》2013年第9期1251-1254,共4页Journal of Clinical Radiology

摘　　要：目的结合咽淋巴环影像解剖特点,对口咽部原发非霍奇金淋巴瘤MRI征象进行分析,提高对该病的认识。方法搜集18例经病理证实的口咽部原发非霍奇金淋巴瘤的完整资料,所有患者治疗前均行MR检查。以影像解剖为基础,分析病灶的分布、形态、MRI信号特点、强化特征以及淋巴结转移方式。结果 18例中B细胞来源13例(72.2%),外周T细胞来源5例(27.8%)。腭扁桃体受累10例,舌根6例,软腭4例;两个以上解剖部位同时受累4例。病灶T1WI呈等或略低信号,T2WI为等或略高信号,增强后轻度均匀强化。所有患者均存在不同程度咽旁间隙受压变窄,但MRI上高信号的脂肪仍存在,口咽部黏膜完整。15例合并颈部淋巴结转移,转移淋巴结无坏死。结论咽淋巴环原发非霍奇金淋巴瘤在发病部位、形态、肿瘤的信号、周围组织结构的侵犯有一定的解剖学及影像学特征,MRI对于口咽部非霍奇金淋巴瘤的准确评估有重要价值。Objective To study the anatomy and MRI features of primarily nonHondgkin＇ s lymphoma （NHL） in Waldeyer＇ s ring to improve its diagnostic accuracy. Methods 18 cases of NHL confirmed by pathology were retrospectively analyzed in regard to MRI appearance, including location, signal, enhanced features and metastasis. Results Of 18 cases, 13 cases of oropharyngeal NHL were originated from B ce11（72.2% ） , and 5 cases from T cell （27.8%）. The tonsil was the most vulnerable site （ n = 10 ） and multitude anatomic site was involved in 4 cases. On TI WI, the lesions were isointense or slight hypointense signal while on T2WI those were isointense or slight hyperintese signal, and showed homogeneously and evenly enhancement after injection of contrast media. The parapharyngeal space were narrowed at differ- ent extent in all cases, but the high signal of the fat was existed on MRI, coincidenfly, mueosae of pharynx oralis was con- tinuous. 15 cervical lymph nodes were involved without necrosis Conclusion Oropharyngeal NHL has some characteristic imaging features of the position, shape and range of oropharyngeal lymphoma and metastases in lymphnodes and invaded surrounding tissue. MRI plays important role in the diagnosis of oropharyngeal NHL.

关 键 词：咽淋巴环 淋巴瘤 磁共振成像 

分 类 号：R739.63[医药卫生—肿瘤]