Medical Definition of Node, sentinel lymph
Node, sentinel lymph: 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 substSource: MedTerms™ Medical Dictionary
Last Editorial Review: 7/1/2016
Medical Dictionary Definitions A - Z
Search Medical Dictionary
- How to Help a Loved One With Cancer
- Is This the Most Effective Cancer Treatment?
- A Holistic Approach to Cancer Treatment