| | Male/Female | No. of patients | % | | 9/12 | 42.9/57.1 |
| | Tumor anatomic distribution | | | | Head | 17 | 81 | | Body | 1 | 4.8 | | Tail | 3 | 14.3 |
| | Performance status | | | | 90–100% | 15 | 71.4 | | 70–80% | 5 | 23.8 | | 50–60% | 1 | 4.8 |
| | Tumor infiltration | | | | T1 | 1 | 4.8 | | T2 | 3 | 14.3 | | T3 | 17 | 81 |
| | Nodal infiltration | | | | N0 | 9 | 42.9 | | N1 | 12 | 57.1 |
| | TNM stage | | | | I | 3 | 14.3 | | II | 6 | 28.6 | | III | 12 | 57.1 |
| | Degree of differentiation | | | | G1 | 4 | 19 | | G2 | 9 | 42.9 | | G3 | 8 | 38.1 |
| | Residual tumor | | | | R0 | 20 | 95.3 | | R1 | 1 | 4.7 |
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