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A 30-year-old member asked:

how are cancer and lymph nodes related to your respiratory system?

2 doctor answers5 doctors weighed in
Dr. Bennett Werner
Cardiology 44 years experience
Metastasis: Many cancers spread to lymph nodes that are in the chest or directly to the lungs themselves. The enlarging tumors compress vital structures including the lungs themselves, arterial supply or venous return to or from the lungs which may fill with fluid. The common denominator is that gas exchange becomes impaired so the blood oxygen level falls.
Dr. Michael Miller
Wound care 36 years experience
Monitoring Centers: Lymphatic system absorbs/carries things too big to go into the arteries/veins like bacteria eaten by white cells and digested food. Lymph nodes "taste" the lymph for anything bad like bacteria/viruses/cancers, etc. When it detects a problem, it alerts the immune system and your body reacts. They enlarge in response to the inflammation they create when they react. They shrink when all is well.

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A 34-year-old member asked:

Where in the respiratory system does cancer typically start?

1 doctor answer1 doctor weighed in
Dr. Kris Gast
Dr. Kris Gast answered
Radiation Oncology 31 years experience
CA&respiratory syst.: Cancer in the respiratory system comes mostly from the linings of the airways. There are several different types of lung CA...small cell, squamous cell, adenocarcinoma, large cell, and bronchalveolar.

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Last updated Sep 8, 2013
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