### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Hi. I am 41 years old, healthy and exercise regularly. I had an area on my left inner calf just below the knee that was itchy. The itch went away but there is a hard knot that is getting larger and bruising that is spreading as the day goes by..it went from 1/2 inch to 2 in diameter today alone. It s dark blue/black and the center is turning red/purple. The leg aches in that area and the knot is painful to the touch. I have a 24 year history of Idiopathic Thrombocytopenic Purpura. Is this knot and bruise anything to be concerned about? I suffered no trauma to the area that I can recall. I m concerned about blood clots. Thank you.

### output:

HI, Dear,Welcome with your query to Chat Doctor. Based on the facts of your query, You seem to had itchy area on inner calf, which turned into hard knot, which got bigger manifolds in a day. This lump starting with itch, seems mostly from a clot developed due to Idiopathic Thrombolytic Purpura. This has mostly occurred from stressed short saphenous Venous system, cauising subcutaneous hemorrhage and which developed in to painful knot. Aim of Treatacment-As ITP is autoimmune treatment, Prednisone is main treatment. Overlap of Varicose veins needs to be investigated and treated along with Platelet transfusion. Treatment would be-Rest ElevationPlatelet transfusion by Plasma Infusion. Steroids /Prednisolone under cover of PhysicianCompression /Cold Compresses. Hope this reply would help you. Welcome for any further query in this regard. Will appreciate writing your feedback review comments, to help the needy patients like you at Chat Doctor. Good Day!!  Chat Doctor. S. Genl-CVTS