MRI of primary non-Hodgkin's lymphoma of the palatine tonsil
MRI of primary non-Hodgkin's lymphoma of the palatine tonsil
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DOI：
10.1259/bjr.74.879.740226
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发表时间：
2001-03-01
影响因子：
2.6
通讯作者：
Ahuja, AT
中科院分区：
文献类型：
--
作者：
King, AD;Lei, KIK;Ahuja, AT
摘要原发于腭扁桃体的非何杰金氏淋巴瘤并不常见。该研究的目的是描述MRI的表现，并确定有助于区分NHL与其他扁桃体肿瘤的特征。回顾性分析了8例原发性腭扁桃体非霍奇金淋巴瘤患者的临床记录和MR图像。患者症状持续时间短（平均1个月）。2例患者出现全身症状（发热、体重减轻或盗汗）。肿瘤呈圆形或分叶状，大小为30 ~ 70 mm。6例患者的T2加权、T1加权和T1加权增强图像信号均匀，与正常扁桃体相似。两个大的肿瘤是轻度异质性，其中一个显示小的坏死灶。7例患者扁桃体NHL移位而非侵犯局部结构，仅1例患者局部侵犯软腭。淋巴结病存在于五名患者和节点的信号强度相似的原发肿瘤。所有淋巴结肿大病例均累及同侧上颈内静脉链。2例患者累及后三角，1例患者累及腮腺周围淋巴结，1例患者累及口咽后区。无深部浸润的大肿瘤伴同质非坏死淋巴结提示NHL诊断。由于NHL经常具有与正常扁桃体相似的信号强度，MRI可能无法检测到非肿大扁桃体中的淋巴瘤累及。
Non-Hodgkin's lymphoma (NHL) arising primarily in the palatine tonsil is uncommon. The aims of the study were to describe the appearances on MRI and to identify the features that help to distinguish NHL from other tonsillar tumours. The clinical records and MR images of eight patients with primary NHL of the palatine tonsil were reviewed. Patients had a short duration of symptoms (mean I month). Systemic symptoms (fever, weight loss or night sweats) occurred in two patients. Tumours were round or lobulated and ranged in size from 30 mm to 70 mm. The signal intensity on T-2 weighted, T-1 weighted and T1 weighted contrast enhanced images was homogeneous and similar to that of normal tonsil in six patients. Two large tumours were mildly heterogeneous and one of these showed small foci of necrosis. NHL of the tonsil displaced rather than invaded local structures in seven patients and locally invaded the soft palate in only one patient. Lymphadenopathy was present in five patients and the nodes were of similar signal intensity to the primary tumour. There was involvement of the ipsilateral upper internal jugular chain in all cases of lymphadenopathy. The posterior triangle was involved in two patients, the periparotid node in one patient and the retro-oropharyngeal region in one patient. The presence of a large tumour without deep invasion together with homogeneous non-necrotic nodes suggests the diagnosis of NHL. As NHL frequently has similar signal intensity to normal tonsil, MRI may not be able to detect lymphomatous involvement in the non-enlarged tonsil.