MEN Type 2B: When Initial Thyroidectomy with Central Compartment Dissection Does Not Achieve Undetectable Calcitonin

In Multiple endocrine neoplasia type 2B, the initial operative approach focuses on the thyroid and the central neck compartment. When postoperative serum calcitonin does not reach undetectable levels after that procedure, a further surgical protocol is indicated.

Previous line — goal not achieved

Prior procedure: Total thyroidectomy with dissection of the lymph nodes in the central compartment (level VI).

Failure condition: Postoperative serum calcitonin levels were not undetectable following complete removal of thyroid tissue.

Next-line approach — partial overview

This protocol involves an extended surgical intervention addressing neck compartments beyond the central level. The specific compartment selection, criteria, and decision thresholds are detailed in the full structured regimen.

Instant Access to Structured Evidence-Based Regimens

References

Patients with MTC confined to the neck and cervical lymph nodes should have a total thyroidectomy, dissection of the central lymph node compartment (level VI), and dissection of the involved lateral neck compartments (levels II–V).
When preoperative imaging is positive in the ipsilateral lateral neck compartment but negative in the contralateral neck compartment, contralateral neck dissection should be considered if the basal serum calcitonin level is greater than 200 pg/mL.

DOI: 10.1089/thy.2014.0335

View source ↗