Table 3: Comparison of the frequencies of lesions with endoscopic images those were difficult to diagnosis among 3 different endoscopic techniques (conventional endoscopy, magnifying endoscopy, and EUS).

Inadequate imaging Frequency of inadequate
YesNoimaging lesions

Conventional 51633.0%A
endoscopy
Magnifying 81604.8%B
endoscopy
EUS2614215.5%C

(A versus B), (B versus C), (A versus C).