First of all, I think you have a lousy family doctor to treat you with such disregard. I'm a pre-nursing student who has had some personal experience with cancer. Not myself, or so I won't know until my test results come in, but with family and patients.
Anyhow, what I know is the lymphatic system is the filter system of your body. The fluid, called lymph, is what carries waste material and dead blood cells from the tissues. Lymph travels through the entire body. This fluid is filtered through the lymph nodes. These lymph nodes filter harmful substances such as bacteria, viruses, and malignant cells out of the lymph before the lymph is returned to the circulatory system.
Lymphatic invasion is when foreign and potentially harmful substances, such as cancer cells, have gotten into the lymph.
I would think that with these pathology reports you should have been taken in to see your surgeon sooner. They are the ones who have read the reports, did the procedure, and need to follow up with you.
I've never lived through this and the closest I've been is waiting for the pathology reporst for my mother's hysterectomy from her uterine cancer. They were negative.
I'm just giving you information I've learned through my studies and patients, and hope that all turns out well for you, and that you find the answers you are looking for. Continue your insisting of knowing what the reports say and what is happening because you need to know everything.