Medical Definition of Sentinel lymph node

Sentinel lymph node: The first lymph node to receive lymphatic drainage from a tumor. The sentinel node for a given tumor is found by injecting a tracer substance around the tumor. This substance then travels through the lymphatic system to the sentinel node. The tracer subst

Quick GuideBreast Cancer Diagnosis and Treatment

Breast Cancer Diagnosis and Treatment

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Last Editorial Review: 6/9/2016

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