Smear cytology   Thin-Prep   Cell Block  
22G 25G p 22G 25G p 22G 25G p
Amount of blood (n)     0.51     1.0     1.0
0 11 9   9 8   10 11  
1 10 9   15 16   12 11  
2 4 7   9 9   4 7  
3 9 9   1 1   4 2  
Contamination (n)     0.90     0.15     0.78
0 6 7   6 10   10 11  
1 13 12   16 15   17 15  
2 10 7   8 6   3 4  
3 5 8   4 3   0 1  
Cellularity (n)     0.52     0.12     0.98
0 11 14   7 9   10 9  
1 11 9   10 13   9 10  
2 7 6   11 9   2 8  
3 5 5   6 3   9 4  
Table 3: Cytological results of samples obtained with the 22-gauge and 25-gauge needles