Molecular Markers in the World Health Organization Classification of Head and Neck Tumors, Fifth Edition

  • 0From the Departments of Radiology (A.A., A.B., J.M., D.R., P.R.) and Neuroradiology (P.V.), Mayo Clinic, 4500 San Pablo Rd, Jacksonville, FL 32224; Department of Radiology, Mayo Clinic, Rochester, Minn (G.B.); and Department of Radiology, UT Southwestern Medical Center, Dallas, Tex (K.V.).

Summary

This summary is machine-generated.

Recent head and neck tumor classifications incorporate molecular and genetic data, enhancing objectivity. Radiologists must understand these changes for improved tumor interpretation and patient care.

Area Of Science

  • Oncology
  • Genetics
  • Pathology

Background

  • Conventional histopathology has limitations in tumor grading and classification.
  • Molecular markers and tumor genetics have advanced significantly over the past decade.
  • Recent World Health Organization (WHO) classifications incorporate molecular and genetic data.

Purpose Of The Study

  • To update radiologists on major changes in the fifth edition of the WHO classification of head and neck tumors (HN5).
  • To provide radiologists with a foundational understanding of pathology and genetics relevant to head and neck tumors.
  • To highlight molecular alterations and newly classified entities in head and neck tumors.

Main Methods

  • Review of molecular and genetic advancements in tumor classification.
  • Analysis of changes introduced in the HN5 classification, including additions, deletions, and reclassifications.
  • Focus on molecular alterations in epithelial and nonepithelial head and neck tumors.

Main Results

  • The HN5 classification integrates molecular markers for more objective and standardized tumor assessment.
  • New tumor entities have been recognized and reclassified based on molecular profiles.
  • Radiologists are now included in the classification process to integrate imaging findings.

Conclusions

  • Understanding molecular and genetic changes is crucial for radiologists to improve tumor interpretation and clinical practice.
  • These updated classifications impact therapy decisions, prognosis, and clinical research.
  • Radiologists play an integral role in the multidisciplinary team for head and neck tumor management.