##  [Fine-Needle Aspiration](/fine-needle-aspiration) 

  ##  [Fine-Needle Aspiration](https://health.quantumdictionary.io/fine-needle-aspiration-0) 

  

 [![Health & Life Sciences Dictionary](/sites/default/files/styles/large/public/2026-01/Health%20%26%20Life%20Sciences.png.webp?itok=yyyaiQOY)](/topic-specific-dictionaries/health-life-sciences)



**Health & Life Sciences Dictionary**

 







 

 

 

 



 

 

 

 

Definition

A minimally invasive sampling technique that uses a small‑bore needle, with or without negative pressure, to aspirate cells or fluid from a mass or organ for cytologic examination; provides cellular material but does not preserve tissue architecture required for histologic diagnosis.