Characteristic

Cases (%)

Total

49

Sex

Male

19 (38.8%)

Female

30 (61.2%)

Age (years)

≤60

25 (51.0%)

>60

24 (49.0%)

Primary or metastatic

Primary

43 (87.8%)

Metastatic

6 (12.2%)

Tumor location

Upper gastrointestinal tract

8 (16.3%)

Lower gastrointestinal tract

41 (83.7%)

Number of lesions

Single

28 (57.1%)

Multiple

7 (14.3%)

Unspecified

14 (28.6%)

Initial symptoms

Bleeding (haematochezia or haematemesis)

21 (42.9%)

Non-bleeding

28 (57.1%)

Distant metastasis

Yes

16 (32.7%)

No

18 (36.7%)

Unspecified

15 (30.6%)

Lymph node metastasis

Yes

27 (55.1%)

No

8 (16.3%)

Unspecified

14 (28.6%)

Melan A (immunohistochemical analysis)

(+)

33 (67.3%)

(-)

13 (26.5%)

Unspecified

3 (6.1%)

Treatments

No (had not received any treatment or had received only palliative care)

12 (24.5%)

Only surgery

19 (38.8%)

Only chemotherapy

1 (2.0%)

Both surgery and chemotherapy

17 (34.7%)