Have the drs. run a full CBC on you?
I just had CT scans of head, neck and chest looking for enlarged lymph nodes. My mother has CLL, which increases my risk for lymphoma, my father has a multinodular goiter, so do I along with a solid nodule on my thyroid, so that increases my risk as well. My CT scans are clean, I just go back in July for another ultrasound of my thyroid to watch for nodule growth.
I will look into other causes of spleen enlargement for you and see if I can't help!
I don't have any other Lymph node involvement. Did Dr.s think you had Lymphoma?
My understanding is that to get decent tissue samples, they do have to remove it. The fact that it's unchanged after 3 months is most likely why your doc is going to watch and wait.
Do you have any other lymph node involvement?