The procedure identifies the lymph nodes that drain lymph fluid from the area of the skin where the melanoma started. If the melanoma has spread, these lymph nodes are usually the first place it will go.
From Timothy DiChiara, Ph.D., former About.com Guide
Updated: April 06, 2009
About.com Health's Disease and Condition content is reviewed by the Medical Review Board
The procedure identifies the lymph nodes that drain lymph fluid from the area of the skin where the melanoma started. If the melanoma has spread, these lymph nodes are usually the first place it will go.
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