Cancer helps itself by sending out chemicals that cripple nearby lymph nodes, making them unable to resist cancer spread.
D006801:Humans; D008198:Lymph Nodes / Q000473:pathology*; D009362:Neoplasm Metastasis / Q000473:pathology*; D009369:Neoplasms / Q000473:pathology*; D021701:Sentinel Lymph Node Biopsy