What is the role of lymph node biopsy in the diagnosis of lentigo maligna melanoma?

Updated: Dec 19, 2019
  • Author: Winston W Tan, MD, FACP; Chief Editor: William D James, MD  more...
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Sentinel lymph node biopsy is done to assess regional lymph node involvement and to decide on adjuvant therapy. This technique is indicated in all melanoma patients except those with stage 0 or stage 1A disease, that is, patients with a lesion thinner than 1 mm (see Staging).

If metastasis is present, a full nodal dissection is done to fully stage the disease.

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