Concept
- Identification of lymph node drainage in the order to which a tumour would drain to
- Injection of radio-labelled dye into the tumour area 1 day pre-operatively
- Followed by injection of blue dye at time of surgery
- Gamma camera used to identify lymph node which is subsequently excised
- Lymph node examined as frozen section for evidence of tumour
- If tumour found then neck dissection performed
- Identification of lymph node drainage in the order to which a tumour would drain to
- Injection of radio-labelled dye into the tumour area 1 day pre-operatively
- Followed by injection of blue dye at time of surgery
- Gamma camera used to identify lymph node which is subsequently excised
- Lymph node examined as frozen section for evidence of tumour
- If tumour found then neck dissection performed
Advantages
- May prevent unnecessary neck dissection in the cN0 neck
- May prevent unnecessary neck dissection in the cN0 neck
Disadvantages
- Doesn't account for 'skip' metastases
- Logistical difficulties in arranging the service
- Doesn't account for 'skip' metastases
- Logistical difficulties in arranging the service
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