Table 1 Demographics and clinical characteristics of patients with ampullary adenocarcinoma

Total number

37 (100 %)

Sex

  Male

18 (48.6 %)

  Female

19 (51.4 %)

Age, years

62.57 ± 8.22

T stage

  T1

14 (37.8 %)

  T2

8 (21.6 %)

  T3

14 (37.8 %)

  T4

1 (2.7 %)

N stage

  N0

31 (83.8 %)

  N1

6 (16.2 %)

Overall stage

  IA

14 (37.8 %)

  IB

6 (16.2 %)

  IIA

11 (29.7 %)

  IIB

5 (13.5 %)

  III

1 (2.7 %)

Tumor size (cm)

2.58 ± 1.49

CA19-9 (U/ml)

459.54 ± 1727.30

CEA (ng/ml)

4.03 ± 5.65

Lymphovascular invasion

  No

31 (83.8 %)

  Yes

6 (16.2 %)

Perineural invasion

  No

30 (81.1 %)

  Yes

7 (18.9 %)

Differentiation

  Well/Moderately

31 (83.8 %)

  Poorly

6 (16.2 %)

Adjuvant therapy

  No

20 (54.0 %)

  Yes

17 (46.0 %)