Endoscopic ultrasonography (EUS) is an important diagnostic technique to accurately diagnose diseases originating from organs near the gastrointestinal tract. EUS-guided fine-needle aspiration (FNA) has improved the histopathological diagnosis. EUS-FNA has been further developed over a long period of 40 years. The history of the development of endosonographic scopes, ultrasonographic observation systems, puncture needles, and puncture methods will provide a springboard for future development.
Keywords: Biopsy; Endoscopic ultrasound-guided fine-needle aspiration; Fine-needle.
© 2024. The Author(s), under exclusive licence to The Japan Society of Ultrasonics in Medicine.