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Heterotopic parathyroid inclusion in a cervical lymph node
Emanuela Veras1, Erich M Sturgis, Mario A Luna
1Department of Pathology and Laboratory Medicine, The University of Texas Medical School at Houston, Texas, USA.
Insights
Pathologists discovered benign parathyroid tissue within a cervical lymph node during neck dissection for laryngeal cancer. This rare finding highlights the importance of considering heterotopic parathyroid inclusions in diagnoses.
Area of Science:
- Pathology
- Surgical Oncology
- Endocrinology
Background:
- Neck dissection specimens can reveal unexpected findings, including benign epithelial inclusions.
- Differential diagnoses for intranodal epithelial inclusions are broad.
Observation:
- A 59-year-old man underwent laryngectomy and bilateral neck dissection for laryngeal squamous cell carcinoma.
- A significantly enlarged lymph node (2.5 x 2.2 x 0.8 cm) was identified at right level IV.
Findings:
- Histologic examination confirmed benign parathyroid inclusions within the enlarged lymph node.
- Immunohistochemistry revealed parathyroid hormone expression in the heterotopic cells.
- This represents a unique case of parathyroid tissue found within a cervical lymph node.
Implications:
- Heterotopic parathyroid inclusions should be considered in the differential diagnosis of cervical lymph node pathology.
- Accurate identification is crucial to avoid misdiagnosis and ensure appropriate patient management.
Background:
During the pathologic examination of neck dissection specimens, unexpected findings within the lymph nodes may be discovered. Such findings may include benign epithelial inclusions, a second primary tumor, or chronic inflammatory diseases.
Methods:
We report a case of a 59-year-old man who underwent a laryngectomy and bilateral neck dissection for a right transglottic squamous carcinoma of the larynx. During the procedure, a large lymph node measuring 2.5 x 2.2 x 0.8 cm was found at the right level IV.
Results:
Histologic examination of the neck dissection specimen revealed benign parathyroid inclusions in the enlarged lymph node. The heterotopic cells expressed parathyroid hormone. This case represents a unique example of heterotopic parathyroid inclusions in a cervical lymph node.
Conclusion:
Parathyroid tissue should be included in the differential diagnosis of cervical intranodal epithelial inclusions.
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