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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Sentinel lymph node is defined as:
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The correct answer is  A sentinel lymph node is defined as the first node in a regional lymphatic basin that receives lymph flow from the primary tumor. Sentinel node mapping can be done by injection of radiolabeled tracers or colored dyes Sentinel node examination has also been used for detecting the spread of melanomas, colon cancers, vulvar cancer, penile cancer and other tumors.