Endoscopic ultrasound guided fine needle tissue acquisition: Where we stand in 2013?

Table 1 Rate of histologically adequate specimens procured using the 3 common size fine needles in recent literature

Ref.	Needle size	Number of patients	Histological adequacy	Location of biopsy
Bang et al[45]	22-G FNA	28	66.7%	Pancreas
	22-G FNB	28
Yasuda et al[52]	19-G	104	98.0%	Lymph nodes
Rong et al[51]	22-G	54	70.4%	Pancreas
	25-G	54	61.1%	Pancreas
	22-G	27	74.1%	Submucosal tumors
	25-G	27	55.6%	Submucosal tumors
Larghi et al[53]	19-G	120	97.5%	Various
Varadarajulu et al[19]	19-G1	38	94.7%	Subepithelial masses
				Pancreatic (head and uncinate lesions)

¹A flexible Nitinol based needle was used in all procedures. FNA: Fine needle aspiration; FNB: Fine needle biopsy.