Pathology Department, Hospital Universitario Central de Asturias, Oviedo, Spain.
Pathology Department, Hospital Universitario del Henares, Coslada, Spain.
Acta Cytol. 2021;65(6):453-462. doi: 10.1159/000517314. Epub 2021 Jul 21.
The Sydney system proposal for the study and reporting of lymphadenopathy by fine-needle aspiration (FNA) constitutes one of the first attempts to standardize this procedure. Here, we review its applicability.
A retrospective study in which all ultrasound-guided FNAs (USFNAs) of superficial lymphadenopathy (palpable or not) performed by interventional pathologists in 2 specialized hospital centers were quantified over 2 years. The procedure was systematized, and the diagnoses were reclassified according to the Sydney system categories.
We analyzed 363 USFNAs of lymphadenopathies. The distribution of cases by categories was as follows: insufficient (n = 13; 3.58%), benign (n = 208; 57.30%), atypia of uncertain significance (n = 7; 1.93%), suspicious (n = 21; 5.79), and malignant (n = 114; 31.40%). The risks of malignancy calculated for categories I, II, III, IV, and V were 27%, 3%, 50%, 100%, and 100%, respectively.
The implementation of the Sydney system allows the systematization and standardization of the lymph node FNA methodology, with increased efficacy and efficiency. Assimilating the recommendations enables the qualification of the diagnostic procedure.
悉尼系统提出的用于细针抽吸（FNA）研究和报告淋巴结病的方案是首次尝试标准化该程序之一。在这里，我们回顾其适用性。
对 2 家专科医院的介入病理学家在 2 年内进行的所有超声引导下的浅表淋巴结病（可触及或不可触及）的 FNA 进行了回顾性研究。对该程序进行了系统化，并根据悉尼系统类别重新分类了诊断。
我们分析了 363 例淋巴结病的超声引导 FNA。按类别划分的病例分布如下：不充分（n = 13；3.58％），良性（n = 208；57.30％），意义不明确的非典型性（n = 7；1.93％），可疑（n = 21；5.79％）和恶性（n = 114；31.40％）。类别 I、II、III、IV 和 V 的恶性风险分别为 27％、3％、50％、100％和 100％。
悉尼系统的实施允许对淋巴结 FNA 方法进行系统化和标准化，从而提高了效率和效果。采用这些建议可以对诊断程序进行规范化。
