Skip to Main Content
An official website of the United States government

Government Funding Lapse
Because of a lapse in government funding, the information on this website may not be up to date, transactions submitted via the website may not be processed, and the agency may not be able to respond to inquiries until appropriations are enacted. The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit cc.nih.gov. Updates regarding government operating status and resumption of normal operations can be found at OPM.gov.

Disclaimer. This site is a training resource for oncology data specialists and cancer registration trainees. It is not intended to provide medical advice or to guide clinical care, diagnosis, or treatment. NCI urges users to consult with a qualified physician for diagnosis and for answers to their personal medical questions.
SEER Training webpage
  • Cancer Registration & Surveillance Modules
  • Site Specific Modules
  • About
  • Contact
NCI is the nation's leader in cancer research.

Providing web-based training modules for cancer registration and surveillance

NCI is the nation's leader in cancer research.
NCI is the nation's leader in cancer research.
NCI is the nation's leader in cancer research.
  1. Home
  2. Site Specific Modules
  3. Head & Neck Cancer
  4. Anatomy
  5. Mouth
  • Head & Neck Cancer
    • Introduction
      • Risk Factors
      • Signs & Symptoms
      • Five-Year Survival Rates
      • Review
    • Anatomy
      • Head & Neck Overview
      • Lip & Oral Cavity
      • Mouth
      • Tongue
      • Salivary Glands
      • Pharynx
      • Larynx
      • Thyroid Gland
      • Sinuses
      • Major Lymph Node Chains of Head
      • Synonymous Terms for Head & Neck Sites
      • Review
    • Abstracting, Coding, & Staging
      • ICD-O Site Codes
      • Morphology & Grade
      • Extent of Disease Evaluation
        • Physical Exam
        • Visual Examination
        • Imaging
        • Tumor Markers
        • Endoscopies
        • Pathology
        • Laboratory Tests
        • Operative Report
      • Staging
        • Lip & Oral Cavity
        • Pharynx
        • Larynx
        • Paranasal Sinuses
        • Glands
      • Abstracting Keys
    • Treatment
      • Common Methods
      • Surgery
        • Oral Cavity
        • Larynx
        • Thyroid Gland
        • Paranasal Sinuses & Nasal Cavity
      • Radiation
      • Other Therapies
  • Module (Hematopoietic Neoplasms)

For hands-on exercises, please go to SEER*Educate.

Mouth

Illustration of the oral cavity and oropharynx.

Previous

Lip & Oral Cavity

Next

Tongue

Suggested Citation

SEER Training Modules: Mouth. U.S. National Institutes of Health, National Cancer Institute. Cited 04 February 2026. Available from: https://training.seer.cancer.gov.

Back to Top
About
  • About This Website
  • About SEER
Resources
  • Cancer Registration & Surveillance Modules
  • Site-Specific Modules
  • Contact
Policies
  • Accessibility
  • Disclaimer
  • FOIA
  • HHS Vulnerability Disclosure
  • Privacy and Security

Surveillance, Epidemiology, and End Results Program at the National Cancer Institute

Contact Us
https://seer.cancer.gov/registrars/contact.html
Follow Us
SRP Blog
Linkedin
U.S. Department of Health and Human Services National Institutes of Health National Cancer Institute USA.gov

Glossary Term