Thyroid fine-needle aspiration (FNA) is a principal diagnostic procedure for thyroid nodules. A specific cytomorphological structure, known as the thyroid spherule, is often seen in FNA specimens. The clinical significance of these spherules in terms of diagnosis and prevalence remains largely unexplored.

中文翻译：

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甲状腺小球对甲状腺结节细胞学诊断的意义

甲状腺细针抽吸（FNA）是甲状腺结节的主要诊断方法。 FNA 标本中经常可以看到一种特定的细胞形态结构，称为甲状腺小球。这些小球在诊断和患病率方面的临床意义在很大程度上仍未被探索。