Table 3.
Statistical analysis regarding the localization, existing lymph nodes, histopathological subtype, T stage and involved risk factors
|
Variables |
|
|
No. of patients |
Percentage |
|
Total cases |
|
|
129 |
100% |
|
Localization |
Oral floor |
Right |
11 |
8.5% |
|
Left |
18 |
14% |
||
|
Bilateral |
6 |
4.6% |
||
|
Lip |
Upper |
5 |
3.9% |
|
|
Lower |
14 |
10.8% |
||
|
Tongue |
Right border |
8 |
6.2% |
|
|
Left border |
5 |
3.9% |
||
|
Anterior third |
5 |
3.9% |
||
|
Middle third |
8 |
6.2% |
||
|
Base |
5 |
4.6% |
||
|
Mandibular alveolar mucosa |
Right |
10 |
7.7% |
|
|
Left |
6 |
4.6% |
||
|
Maxillary alveolar mucosa |
Right |
5 |
3.9% |
|
|
Left |
2 |
2.3% |
||
|
Retromolar triangle |
Right |
1 |
0.7% |
|
|
Jugal mucosa |
Right |
1 |
0.7% |
|
|
Left |
4 |
3.1% |
||
|
Hard palate |
Right |
3 |
2.3% |
|
|
Soft palate |
|
5 |
3.9% |
|
|
Tuberosity |
Left |
1 |
0.7% |
|
|
Intermaxillary commissure |
Right |
2 |
1.5% |
|
|
Left |
2 |
1.5% |
||
|
Nodes |
|
|
56 |
43% |
|
Submental |
|
2 |
3.6% |
|
|
Submandibular |
Right |
7 |
12.5% |
|
|
Left |
6 |
10.7% |
||
|
Bilateral |
1 |
1.7% |
||
|
Latero-cervical |
Right |
9 |
16% |
|
|
Left |
7 |
12.5% |
||
|
Bilateral |
3 |
5.3% |
||
|
Both submental and submandibular |
Right |
1 |
1.7% |
|
|
Left |
3 |
5.3% |
||
|
Both submandibular and latero-cervical |
Right |
4 |
7.1% |
|
|
Left |
16 |
28.5% |
||
|
Histopathological subtype |
Squamous cell carcinoma |
|
118 |
91.5% |
|
Basal cell carcinoma |
|
2 |
1.5% |
|
|
Adenocarcinoma |
|
4 |
3.1% |
|
|
Adenoid cystic carcinoma |
|
2 |
1.5% |
|
|
Mucoepidermoid carcinoma |
|
3 |
2.4% |
|
|
T stage |
T1 |
|
10 |
7.8% |
|
T2 |
|
31 |
24% |
|
|
T3 |
|
53 |
41% |
|
|
T4 |
|
35 |
27% |
|
|
Differentiation grade |
G1 (well differentiated) |
|
20 |
25.8% |
|
G2 (moderate differentiated) |
|
39 |
50.3% |
|
|
G3 (poorly differentiated) |
|
42 |
54.1% |
|
|
G4 (undifferentiated) |
|
28 |
36.1% |
|
|
Risk factors |
Tobacco |
|
67 |
52% |
|
Alcohol |
|
31 |
24% |
|
|
Tobacco + alcohol |
|
22 |
28.3% |