Table 4 Evaluation of ampullary cancer by means of US, CT scan and EUS and comparison to surgery findings in 17 patients who underwent surgery. Distribution of T stage, enlarged lymph nodes (for US and CT scan), N stage (for EUS and Surgery), Common bile duct (CBD) and main pancreatic duct (MPD) dilatation (for US and CT scan) and M stage (for US, CT scan and Surgery).

T stage ^*

Advanced 2/17 (12%)

Advanced 4/17 (24%)

Early: 6/17 Advanced: 11/17

Early: 8/17 Advanced:9/17

Enlarged LN or N stage

8/17 (47%)

11/17 (65%)

N0:1/17 N1:16/17

N0:5/17 N1:12/17

M stage

2/17

3/17

NA^**

3/17

CBD and MPD dialatation

CBD 12/17 (71%) MPD 2/17 (12%)

CBD 13/17 (76%) MPD 5/17 (29%)

NA

NA