lateral neck dissection
Surgical removal of lymph node compartments in the lateral neck to treat metastatic thyroid cancer.
Full Definition
Lateral neck dissection is a surgical procedure involving the systematic removal of lymph node groups in the lateral cervical compartments (levels II-V) to treat metastatic thyroid cancer, particularly papillary and medullary carcinomas. This procedure is indicated when imaging or intraoperative findings demonstrate lateral cervical lymph node metastases that are not adequately addressed by central compartment dissection alone. The surgery requires careful identification and preservation of important structures including the spinal accessory nerve, internal jugular vein, and carotid arteries. Lateral neck dissection may be performed as a modified radical, selective, or comprehensive procedure depending on the extent of disease.
Usage
Usage note: Specify lymph node levels involved (II-V) when documenting extent of dissection.
In Context
- "PET imaging revealed lateral cervical adenopathy requiring lateral neck dissection." — surgical planning note
- "Lateral neck dissection of levels II-IV was performed with preservation of the spinal accessory nerve." — operative report