Smith Kelli, O'Brien Robert
Department of Clinical Sciences, Kansas State University, Manhattan, KS, USA.
J Am Anim Hosp Assoc. 2012 May-Jun;48(3):176-81. doi: 10.5326/JAAHA-MS-5750. Epub 2012 Apr 3.
In this retrospective study, radiographically enlarged sternal lymph nodes (LNs) were evaluated in 71 dogs and 13 cats for average size, location, and most representative radiographic view. Concurrent clinical diagnoses were also noted and grouped into one of three following categories: neoplastic, inflammatory, or hematologic. There were no statistically significant differences in LN size between lateral views within each species. Enlarged sternal LNs were more cranially positioned in dogs than cats. No statistical difference was noted between right and left laterals, as to on which projection the enlarged sterna lymph nodes was seen best. Neoplastic disease (78.9%) was the most prevalent condition seen in association with LN enlargement in dogs, followed by primary infectious or inflammatory diseases (14.1%) and various hematologic conditions (7.0%). In cats, neoplasia was also most common (69.2%), followed by inflammatory diseases (30.8%). No hematologic conditions were noted in cats. The most common etiologic agent seen concurrently with enlarged sternal LNs in both dogs (33.8%) and cats (38.5%) was malignant lymphoma. The results of this study provide a clinically useful representation of the average size and location of radiographically enlarged sternal LNs for dogs and cats. The diseases represented demonstrate the wide spectrum of potential causes of sternal lymphadenopathy.
在这项回顾性研究中，对71只犬和13只猫的X线片显示增大的胸骨淋巴结（LN）进行了平均大小、位置及最具代表性的X线片视图评估。同时记录临床诊断结果并分为以下三类之一：肿瘤性、炎症性或血液学性。各物种内不同侧位视图的淋巴结大小无统计学显著差异。犬的增大胸骨淋巴结比猫的更靠近头侧。在右侧和左侧侧位视图之间，关于在哪一投照位能最佳显示增大的胸骨淋巴结，未观察到统计学差异。肿瘤性疾病（78.9%）是犬淋巴结增大相关的最常见情况，其次是原发性感染或炎症性疾病（14.1%）和各种血液学疾病（7.0%）。在猫中，肿瘤也是最常见的（69.2%），其次是炎症性疾病（30.8%）。猫未观察到血液学疾病。在犬（33.8%）和猫（38.5%）中，与增大的胸骨淋巴结同时出现的最常见病因是恶性淋巴瘤。本研究结果为犬猫X线片显示增大的胸骨淋巴结的平均大小和位置提供了临床有用的描述。所呈现的疾病表明胸骨淋巴结病的潜在病因范围广泛。
