<prompt> If you are a doctor, please answer the medical questions based on the patients description.I have alot of issues but one that concerns me is that I have pain in my right groin for the past 5 yrs and I just got checked and my doctor said I had a inlarged lympnode.She just said she will keep an eye on it.She checke my bood and every thing is good except I have a history of low platelets 109-120 but she s nothing wrong with my bood.She checked my overie, spleen , liver and just did a abdomen ultersound but she can t find anything wrong.But I still have pain in my groin and it get s inflamed.Also she checked for hurnia and I do not have it.My concern is that my son had Multicentric Castelman s Disiese at a young age he is now past away.He took his life at 17.But I am concerned that is maybe why I have inlarged lympnode in my groin.My doctor does not know anything about this disiese so can yu help me or give me any sudjestions. Lorraine  <response>: Hi and thanks for the query, It might necessary to have a more careful look at this enlarged lymph node. Presence of other symptoms like loss of body weight, night sweats and fever could be suggestive of a tumor. A complete blood count to measure white blood cell levels could give n impression of a possibility of lymphoma or not. Depending on the case, a lymph node biopsy or needle aspiration of the lymph node cam be done and sent for histological analysis to check for a tumorcancer if present or not. Presence of other lymph nodes should also actively be checked for. I suggest you book an appointment with an internist. Best reads, Bain LE, MD. 