Comparative analysis of diagnostic adequacy rate between aspiration and nonaspiration techniques of fine-needle cytology in patients with thyroid cancer and ultrasonographically suspicious cervical lymph nodes.

The diagnostic adequacy rate in NAS-FNC-LN was significantly higher than AS-FNC-LN. However, NAS technique seems to be more simple and comfortable. We suggest both NAS and AS-FNC-LN in cytologic evaluation of suspicious cervical LNs until the diagnostic accuracy is determined with prospective studies.