Table 1 Patient characteristics
Patients’ characteristics (n = 65) | ||
|---|---|---|
Characteristics | Value | % |
Gender (Number of patients) | ||
female | 30 | 46.2% |
male | 35 | 53.8% |
Age at diagnosis (years) | ||
Median | 57 | |
Range | 26–83 | |
Primary tumor site (Number of patients) | ||
Parotid Gland | 36 | 55.4% |
Submandibular Gland | 11 | 16.9% |
Minor Salivary Glands: | 18 | 27.7% |
- Nasal cavity/paranasal sinus | 6 | |
- Hard palate | 3 | |
- Tongue/base of tongue | 5 | |
- Meatus acusticus | 2 | |
- Floor of mouth | 1 | |
- Cheek | 1 | |
Histologic Subtypes (Number of patients) | ||
Adenoidcystic Carcinoma | 25 | 38.5% |
Mucoepidermoid Carcinoma | 13 | 20.0% |
Ductal Adenocarcinoma | 19 | 29.2% |
Adenocarcinoma NOS | 4 | 6.2% |
Acinic cell carcinoma | 2 | 3.1% |
other | 2 | 3.1% |
Tumor stage (Number of Patients) | ||
pT1 | 9 | 13.8% |
pT2 | 10 | 15.4% |
pT3 | 30 | 46.2% |
pT4 | 16 | 24.6% |
pT4a | 13 | |
pT4b | 3 | |
Primary tumor size (cm) | ||
Median: | 2.8 | |
Range: | 1–8.5 | |
Nodal Stage (Number of Patients) | ||
c/pN0 | 27 | 41.5% |
pN1 | 14 | 21.5% |
pN2b | 24 | 36.9% |
Perinodal Spread (Number of Patients) | ||
no | 39 | 60.0% |
yes | 21 | 32.3% |
unknown | 5 | 7.7% |
Lymphangiosis (Number of patients) | ||
L0 | 43 | 66.2% |
L1 | 20 | 30.8% |
Lx | 2 | 3.1% |
Hemangiosis (Number of patients) | ||
V0 | 52 | 80.0% |
V1 | 11 | 16.9% |
Vx | 2 | 3.1% |
Perineural Spread (Number of Patients) | ||
Pn0 | 6 | 9.2% |
Pn1 | 59 | 90.8% |
Resection margin (Number of Patients) | ||
R0 | 40 | 61.5% |
R1 | 19 | 29.2% |
R2 | 6 | 9.2% |
Grade of Differentiation (Number of Patients) | ||
Low-grade | 6 | 9.2% |
Intermediate-grade | 11 | 16.9% |
High-grade | 47 | 72.3% |
Gx | 1 | 1.5% |
Bone Infiltration of primary tumor | ||
No | 59 | 90.8% |
Yes | 6 | 9.2% |
Neck Dissection (Number of Patients) | ||
None | 10 | 15.4% |
Ipsilateral | 48 | 73.8% |
Bilateral | 7 | 10.8% |
Radio (chemo) therapy (Number of patients) | ||
Radiation alone | 24 | 36.9% |
Radiochemotherapy | 41 | 63.1% |
Radiation dose (Gy): | ||
Median: 64 | ||
Range: 45–74.2Gy | ||
Radiation technique (Number of patients) | ||
3D: | 38 | 58.5% |
IMRT: | 27 | 41.5% |
Planning target volume (number of patients) | ||
Primary tumor region | 11 | 16.9% |
Primary tumor region, ipsilateral neck | 35 | 53.8% |
Primary tumor region, bilateral neck | 19 | 29.2% |