Axillary lymph node metastasis in second oropharyngeal cancer

Area of Science:

• Oncology
• Head and Neck Cancer Research
• Metastasis Studies

Background:

• Axillary lymph node metastasis is an uncommon occurrence in head and neck cancers.
• The spread pattern to these nodes is often unpredictable, even in lymphophilic tumors.

Purpose of the Study:

• To investigate an unusual case of axillary lymph node metastasis in head and neck cancer.
• To review the literature on aberrant lymphatic spreading patterns in recurrent oropharyngeal cancers.

Main Methods:

• Case report of a 72-year-old patient with squamous cell carcinoma of the mouth.
• Utilized Positron Emission Tomography-Computed Tomography (PET-CT) for metastasis detection.
• Confirmed metastatic origin through pathological analysis.

Main Results:

• Patient presented with a second primary malignancy and an infraclinic axillary metastasis.
• Metastatic origin of the axillary node was pathologically confirmed.
• Literature review suggests retrograde lymphatic spreading may be involved in similar cases.

Conclusions:

• Axillary lymph node involvement, potentially via retrograde lymphatic spreading, may not be as rare as previously thought in recurrent oropharyngeal cancers (T3-T4, N2+).
• This case and literature review suggest a need to consider aberrant spreading patterns in head and neck cancer management.
• Current diagnostic tools can detect distant metastases, even outside typical lymphatic pathways.