EUS-FNA passes will be performed without stylet. One "needle pass" is defined as 5 strokes in 4 different areas of the lesion. The material from the first 2 needle passes (one 25S and the other 25P) will be expressed into formalin to look for core samples. Material from the next 2 needle passes (again one 25S and the other 25P) will be expressed onto slides for cytological analysis. Ease of puncture will be scored qualitatively as poor (scored 1), good (scored 2) or excellent (scored 3).