<s>[INST] hi my name is Pam, my 11 yr daughter had a bump on her leg it looked like a pimple and she bust it now it she has a lump on her leg the size of a tennis ball with a puncher mark on it. it is swallen and red and hot to the touch she dont have a fever but it hurts her to walk on it. is this seriouse [/INST] Hi, dairy have gone through your question. I can understand your concern. She may have inflamed cystic lesion like Desmond cyst, or she may have some soft tissue tumor like lipoma, neurofibroma or dermatofibroma. She should go for fine needle aspiration cytology or biopsy of that lump. It will give you exact diagnosis. Then you should take treatment accordingly. Hope I have answered your question, if you have doubt then I will be happy to answer. Thanks for using Chat Doctor. </s>