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Old 05-13-2013
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Default Breast cancer and lymph drainage

Hi guys, I had a question like this on one of my practice tests and I can't figure it out:

Given the breast's pattern of lymph drainage, where is breast cancer most likely to be spread?

Thanks all!
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Old 05-13-2013
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To the axillary side because around 75 % of the breast drains laterally where they first encounter axillary nodes
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Old 05-14-2013
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Approximately 75% of the lymph from the breast travels to the ipsilateral (same-side) axillary lymph nodes, whilst 25% of the lymph travels to the parasternal nodes (beside the sternum bone), to the other breast, and to the abdominal lymph nodes. The axillary lymph nodes include the pectoral (chest), subscapular (under the scapula), and humeral (humerus-bone area) lymph-node groups
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