Poor Accrual

For patients undergoing treatment for head and neck cancer, this study will use dynamic contrast-enhanced CT scans to try to determine which lymph nodes in the neck contain cancer and require surgical removal.

Inclusion Criteria:

• Age 18 or older

• Willing to provide informed consent

• ECOG performance status 0-2

• Histologically confirmed squamous cell carcinoma (includes variants such as verrucous carcinoma, spindle cell carcinoma, carcinoma NOS) of the head and neck

• Tumor stage: Any (T1-T4)

• Nodal stage:

  • N2 or N3 (≥ 3 cm) on pre-treatment imaging for radiotherapy cohort (higher likelihood of requiring neck dissection);
  • N1-N3 for surgery cohort. N0 admissible for T4 tumors.

• Patient assessed at head and neck multidisciplinary clinic (with assessment by radiation oncologist and surgeon), with recommendation for definitive chemoradiation therapy (n=15) or surgery (n=15)

Exclusion Criteria:

• Prior history of head and neck cancer within 5 years
• Prior head and neck radiation at any time
• Metastatic disease, or imaging findings suspicious for metastases
• Prior invasive malignant disease unless disease-free for at least 5 years or more, with the exception of non-melanoma skin cancer.
• Pregnant or lactating women
• Contraindication to DCE-CT (e.g. contrast allergy)