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Related Experiment Video

Updated: Jan 11, 2026

A Model for Perineural Invasion in Head and Neck Squamous Cell Carcinoma
08:59

A Model for Perineural Invasion in Head and Neck Squamous Cell Carcinoma

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Imaging Insights into Perineural Tumor Spread.

Reve Chahine1, Hemant Parmar1, Mohannad Ibrahim1

  • 1Department of Radiology, Michigan Medicine, 1500 E. Medical Center Drive, Ann Arbor, MI 48109, USA.

Radiologic Clinics of North America
|November 13, 2025
PubMed
Summary

Perineural spread (PNS) is a common but often missed sign of head and neck cancer. Early detection through advanced imaging is crucial for patient prognosis and treatment.

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Area of Science:

  • Radiology
  • Oncology
  • Head and Neck Cancer Imaging

Background:

  • Perineural spread (PNS) is a significant pathway for head and neck tumor extension.
  • PNS is frequently occult and can be overlooked during initial imaging assessments.
  • Radiologists play a key role in the initial detection of PNS, impacting patient outcomes.

Purpose of the Study:

  • To provide a comprehensive overview of perineural spread (PNS) in head and neck malignancies.
  • To detail relevant cranial nerve anatomy, imaging protocols, and characteristic radiologic features of PNS.
  • To enhance the recognition of PNS through illustrative cases and emphasize imaging's role in early identification.

Main Methods:

  • Review of relevant cranial nerve anatomy.
  • Discussion of optimized imaging protocols for detecting PNS.
Keywords:
Cranial nervesHead and neck cancerImagingPerineural invasionPerineural spreadRadiology

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  • Analysis of characteristic radiologic features associated with PNS.
  • Inclusion of multiple illustrative cases for recognition.

    • Main Results:

    • PNS is a clinically significant and often overlooked route of tumor spread in head and neck cancers.
    • Early radiologic detection of PNS has major implications for prognosis and management.
    • Optimized imaging protocols and recognition of specific features are vital for identifying occult PNS.

    Conclusions:

    • Radiologic identification of perineural spread is critical for improving head and neck cancer patient management.
    • Understanding cranial nerve anatomy and imaging features aids in the early detection of PNS.
    • This review highlights the essential role of imaging in diagnosing this often-occult disease process.