Four years ago today I had the dreaded biopsy which confirmed my BC. Today I had to have a biopsy to check something seen on my US I had on Tuesday. They found something growing in my lymph nodes. Huh...
Google has some good uses too for gathering information....if you google "lymph nodes breast cancer" and then click on 'images', you'll find a number of diagrams showing l the lymphatic system in the areas mentioned above as well as in the chest.