My Husband Was Diagnosed With Olfactory Neurblastoma. Since This Is

My husband was diagnosed with olfactory neurblastoma. Since this is such a rare cancer the research is minimal. He has had a problem in his stomach for a couple of years now. He describes it as feeling like something is pushing against his abdomen from his left side. They did an ultra sound and found nothing. Now 2 months ago we find out he has this rare cancer. Do you think it is related?