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Updated: May 14, 2026
07:01
An Orthotopic Mouse Model of Anaplastic Thyroid Carcinoma
Published on: April 17, 2013
Dilated high endothelial venules in lymph nodes simulating metastatic thyroid carcinoma
Samanta Estevez1, Francesca Maria Bosisio
1Universidad de Buenos Aires, Buenos Aires, Argentina. samantaestevez@hotmail.com
International Journal of Surgical Pathology
|January 26, 2013
Summary
Microscopic examination of lymph nodes during thyroid cancer surgery requires careful attention. Dilated high endothelial venules near the capsule can mimic metastasis, potentially leading to misdiagnosis.
Area of Science:
- Pathology
- Oncology
- Surgical Pathology
Background:
- Thyroid carcinoma surgical management often involves lymph node dissection for staging and treatment.
- Accurate pathological assessment of lymph nodes is critical for patient prognosis and therapeutic decisions.
Observation:
- Microscopic examination of lymph nodes can present diagnostic challenges.
- Specific histological features, such as dilated high endothelial venules (HEVs) near the capsule, require careful evaluation.
Findings:
- Dilated high endothelial venules, particularly when located peripherally within lymph nodes, can be mistaken for metastatic carcinoma deposits.
- This case highlights a potential pitfall in lymph node metastasis diagnosis in thyroid cancer specimens.
Implications:
- Awareness of this potential artifact is crucial for pathologists to avoid overdiagnosis of metastasis.
- Correct interpretation prevents unnecessary treatment escalation and patient anxiety.
- This underscores the importance of detailed morphological analysis in surgical pathology.
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