Clin Endosc.  2014 Sep;47(5):425-428. 10.5946/ce.2014.47.5.425.

Fine-Needle Biopsy: Should This Be the First Choice in Endoscopic Ultrasound-Guided Tissue Acquisition?

Affiliations
  • 1Department of Internal Medicine, Catholic University of Daegu School of Medicine, Daegu, Korea. kimey@cu.ac.kr

Abstract

Endoscopic ultrasound (EUS)-guided tissue acquisition is an indispensable technique for the diagnosis of many diseases of the gastrointestinal tract and adjacent structures. EUS-guided fine-needle aspiration (EUS-FNA) is known for its high accuracy and low complication rate. However, the outcome of EUS-FNA highly depends on several factors such as the location and characteristics of the lesion, endosonographer's experience, technique of sampling and sample preparation, type and size of the needle used, and presence of a cytopathologist for rapid on-site examination. EUS-guided fine-needle biopsy is useful to obtain core tissue samples with relatively fewer passes. Aspiration of core tissue with preserved architecture is beneficial for the diagnosis of certain diseases and the performance of ancillary testing such as tumor molecular profiling. Issues related to needle size, type, and their acquired samples for cytologic and histologic evaluation are discussed here.

Keyword

Endoscopic ultrasound-guided tissue acquisition; Endoscopic ultrasound-guided fine-needle aspiration; Endoscopic ultrasound-guided fine-needle biopsy; Cytology; Core biopsy

MeSH Terms

Biopsy, Fine-Needle*
Diagnosis
Endoscopic Ultrasound-Guided Fine Needle Aspiration
Gastrointestinal Tract
Needles
Ultrasonography
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