Clinical Report: Fluorescence-Based Identification of Perineural and Bone Invasion

Background

Achieving negative margins in head and neck squamous cell carcinoma (HNSCC) is crucial, as close or positive margins can lead to increased local recurrence and adverse outcomes. Intraoperative detection of these margins is essential for effective surgical management. Fluorescence-guided surgery (FGS) using targeted tracers like panitumumab-IRDye800 offers a method to enhance tumor visualization and margin assessment.

Data Highlights

No numerical data or trial data provided in the source material.

Key Findings

• Intraoperative fluorescence imaging using panitumumab-IRDye800 identified perineural invasion in a patient with gingival squamous cell carcinoma.
• Final pathology confirmed multiple foci of perineural invasion and positive margins after fluorescence-guided surgery.
• Fluorescence microscopy correlated with histopathological findings, demonstrating accurate identification of tumor involvement.
• Fluorescence guidance improved interobserver agreement compared to surgeon judgment alone.
• The patient's staging was adjusted from cT2N0 to pT4a based on intraoperative findings.

Clinical Implications

The use of fluorescence-guided surgery may enhance the accuracy of margin assessment during resection of gingival squamous cell carcinoma. This technique could potentially lead to improved surgical outcomes by reducing the rates of local recurrence associated with positive margins.

Conclusion

Fluorescence-based imaging with panitumumab-IRDye800 demonstrates significant potential for improving intraoperative decision-making in head and neck cancer surgeries, particularly in identifying perineural invasion and ensuring negative margins.

Related Resources & Content

1. Krishnan et al., 2022 -- Fluorescence-guided surgery in head and neck cancer
2. npj Digital Medicine — Rapid multimodal imaging integrated with machine learning reveals taurine as a potential biomarker for assessing breast cancer surgical margins
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4. Journal of Neuro-Oncology — Distribution of Tumor and Immune Cells in the Core and Peripheral Regions of IDH Wildtype Glioblastoma
5. Current pathology reporting standards for oral cavity squamous cell carcinoma
6. Cutting-edge insights: near-infrared imaging for surgical margin assessment in head and neck tumor resection: a systematic review and meta-analysis - PMC