Melanoma surgery On the Web
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The predominant treatment for primary melanoma is wide excision of the lesion margins. The choice of clinical margins is based on the tumor thickness. When lymph nodes are involved, complete dissection of the nodal basin is recommended.
Surgical Margins for Wide Excision of Primary Melanoma
- The National Comprehensive Cancer Network (NCCN) recommends wide excision of margins of primary melanoma.
- The choice of clinical margins is based on the tumor thickness.
- The margins may be individualized to accomodate anatomic and functional considerations.
|Tumor thickness||Recommended Clinical Margins|
|In situ||0.5 cm|
|≤ 1 mm||1 cm|
|> 1 mm - 2 mm||1-2 cm|
|> 2 mm - 4 mm||2 cm|
|> 4 mm||2 cm|
Complete Lymph Node Dissection
The 2013 National Comprehensive Cancer Network (NCCN) recommends complete dissection of involved nodal basin is recommended.
- Specific considerations for the groin lymph nodes
- Indications for iliac and obturator lymph node dissection:
- Positive pelvic CT, or
- Cloquet's node is positive
- Elective iliac and obturator lymph node dissection
- Clinically positive superficial node, or
- ≥ 3 superficial nodes are positive
- Coit DG, Andtbacka R, Anker CJ, Bichakjian CK, Carson WE, Daud A; et al. (2013). "Melanoma, version 2.2013: featured updates to the NCCN guidelines". J Natl Compr Canc Netw. 11 (4): 395–407. PMID 23584343.