Enter primary site of tumor. Click help below for the full definition of each site group.
If patient is known node-negative, enter 0 nodes.
Enter patient information:
Patient characteristics
Non-cancer lethality is calculated empirically from the population of SEER head and neck cancer patients, stratifying by age and gender.
Current Age:
Years since diagnosis:
If 'Years since Diagnosis' is non-zero, the calculator will compute conditional survival for the patient
Tumor characteristics
Cancer lethality is based upon the combination of a number of contributing factors. You may specifiy these information below.
Tumor Site
Tumor diameter is the largest dimension of the tumor. This calculator is verified for sizes between 0.1cm and 5.0cm.
Tumor Diameter:
Tumor Extension:
Enter tumor extension for oral cavity or oropharynx tumors only. Click help below for the full definition of each extension group.
N stage:
Enter N stage, if known.
# of Positive Nodes:
Extracapsular Spread:
Enter the existence of extracapsular spread, if known.
Histological Type:
Currently, this calculator only supports squamous cell carcinoma histologies.
Update Graph
Questions or trouble? Click here for the calculator FAQ
Click here for tumor site and tumor extension descriptions

Display as:
Cancer Mortality: _% 10-year cancer mortality.
(Kaplan-Meier death rate of _%)
Life Expectancy:
__ years mean survival

A __-year-old woman without this cancer would have mean survival of __ years.