I'm sorry to hear your sister has recently been diagnosed with low grade non hodgkin lymphoma but it's great you're trying to find out as much as you can about it. I've had a look around our website and if you click here you can read more about this type of lymphoma.
I hope this helps Julielou but if you have any further questions feel free to give our cancer nurses a call. They are available Monday - Friday (except bank holidays), 9a.m - 5p,m on 0808 800 4040 which is free to call from a UK landline.
