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首页> 外文期刊>Tierarztliche Praxis, Ausgabe K. Kleintiere >Sonographically detectable changes in abdominal lymph nodes in dogs with malignant lymphoma. Evaluation with special consideration of the Solbiati-Index
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Sonographically detectable changes in abdominal lymph nodes in dogs with malignant lymphoma. Evaluation with special consideration of the Solbiati-Index

机译：恶性淋巴瘤犬腹部淋巴结的超声可检测变化。特别考虑Solbiati指数进行评估

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摘要

Objective: Characterization of the disorders of abdominal lymph nodes in dogs with malignant lymphoma and evaluation of the Solbiati-Index (SI) and the relationship between the short axis and the length of the lymph node (S:L ratio) as malignancy criteria. Material and methods: Retrospective analysis of data from dogs with malignant lymphoma. Inclusion criteria were cytological or histological diagnosis of the malignant lymphoma and an ultrasound examination of the abdomen prior to initiation of therapy. Criterion for exclusion was the application of a cytostatic agent prior to diagnosis. Furthermore, abdominal lymph nodes with non-neoplastic disorders were examined, when sonography as well as cytological/histological examinations were available. Results: A total of 261 lymph nodes (127 dogs) with malignant lymphoma and 17 lymph nodes (nine dogs) with benign disorders were evaluated. Sonography revealed massively rounded, clearly enlarged lymph nodes in 115/127 dogs (91%) with malignant lymphoma, while the lymph nodes of the other 12 dogs (9%) displayed an enlargement in the long axis. All 17 lymph nodes with benign disorders were enlarged in the long axis. The nodal parenchyma of 91% of the 127 dogs (malignant lymphoma) presented as hypoechoic to anechoic, and the cortex and medulla could not be differentiated. In the remaining 9% of dogs, a physiological isoechoic nodal parenchyma was observed. The parenchyma of lymph nodes with benign disorders was sonographically inconspicuous. In 71% of the 127 dogs with malignant lymphoma, the SI was <2 and the S:L ratio >0.5 (indicative for malignancy). Of the nine dogs with benign lymph node disorders, 71% had an SI of >2 and 76% of them had an S:L ratio <0.5 (indicative of a benign process). Conclusion and clinical relevance: The significant increase in the size, rounding and hypoechoic changes in the lymph nodes in dogs with malignant lymphoma are indicative parameters of malignancy. In addition, the SI and the S:L ratio serve as a differentiation between benign and malign processes. Because of blurred boundaries between the malignant and benign changes, the various parameters should always be considered in conjunction.
机译：目的：确定恶性淋巴瘤犬腹部淋巴结疾病的特征，并以Solbiati-Index（SI）和短轴与淋巴结长度的关系（S：L比）作为恶性标准进行评估。材料和方法：回顾性分析恶性淋巴瘤犬的数据。纳入标准为恶性淋巴瘤的细胞学或组织学诊断以及开始治疗前腹部的超声检查。排除标准是在诊断前应用细胞抑制剂。此外，在进行超声检查和细胞学/组织学检查时，检查了非肿瘤性疾病的腹部淋巴结。结果：总共评估了261例恶性淋巴瘤淋巴结（127只狗）和17例良性疾病的淋巴结（九只狗）。超声检查显示，在115/127例恶性淋巴瘤犬中，淋巴结呈圆形且明显增大，而恶性淋巴瘤则占91％，而其他12例犬（9％）的淋巴结在长轴上则增大。长轴上所有17例具有良性疾病的淋巴结均增大。 127只狗（恶性淋巴瘤）中有91％的淋巴结实质表现为低回声至无回声，并且无法区分皮质和髓质。在其余9％的狗中，观察到生理等回波的节点实质。在超声检查中，良性疾病的淋巴结实质薄弱。在127只恶性淋巴瘤犬中，有71％的SI小于2，S：L比大于0.5（表明恶性）。在9例良性淋巴结疾病的狗中，有71％的SI大于2，其中76％的S：L比<0.5（表明有良性过程）。结论和临床意义：恶性淋巴瘤犬淋巴结的大小，变圆和低回声变化的显着增加是恶性指标。此外，SI和S：L比率可区分良性和恶性过程。由于恶性变化与良性变化之间的界限模糊，应始终将各种参数结合起来考虑。

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