The surgical management of locally advanced well-differentiated thyroid carcinoma: changes over the years according to the AJCC 8th edition Cancer Staging Manual

Well-differentiated thyroid carcinoma is defined as locally advanced in the presence of an extra thyroid extension, e.g., when the surrounding structures such as the trachea, larynx, esophagus and main blood vessels are invaded by cancer. The 8th edition AJCC Cancer Staging Manual states that this i...

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Bibliographic Details
Published in:Thyroid research 2019-10, Vol.12 (1), p.10-10, Article 10
Main Authors: Metere, Alessio, Aceti, Valerio, Giacomelli, Laura
Format: Article
Language:English
Subjects:
AJCC 8th edition Cancer Staging Manual
Analysis
Cancer staging
Carcinoma
Extra thyroid extension (ETE)
Handbooks
Locally advanced thyroid cancer
Prognosis
Review
Risk factors
Thyroid cancer
Thyroid diseases
Tumors
Well-differentiated thyroid carcinoma (WDTC)
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Summary:Well-differentiated thyroid carcinoma is defined as locally advanced in the presence of an extra thyroid extension, e.g., when the surrounding structures such as the trachea, larynx, esophagus and main blood vessels are invaded by cancer. The 8th edition AJCC Cancer Staging Manual states that this is the main characteristic to evaluate for the staging and consequently for the prognosis in patients over 55 years old. Distinguishing different forms of locally advanced thyroid cancer is essential, and the various anatomical structures and the clinical and therapeutic consequences must be taken into account. An accurate diagnosis of the organs invaded by thyroid cancer is necessary for the planning of surgical treatment, and both aspects are crucial to improving the patients' survival. Patients affected by thyroid cancer with extra thyroid extension have a poor prognosis and the removal of the entire neoplasm represents a key factor for better disease-free survival. We discuss the changes introduced by the 8th edition AJCC Cancer Staging Manual, in terms of the diagnostic and surgical management of extra thyroid extension, in patients affected by papillary and follicular thyroid cancer.
ISSN:1756-6614
1756-6614
DOI:10.1186/s13044-019-0071-3