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Sentinel Lymph Node Biopsy: MedlinePlus Medical Test

Sentinel Lymph Node Biopsy: MedlinePlus Medical Test

What is a sentinel lymph node biopsy? A sentinel lymph node biopsy is a test that checks lymph nodes for cancer cells. Lymph nodes are part of the lymphatic system, a network of organs and vessels that help the body fight infections and other diseases. Lymph nodes are located throughout …

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