Conversation: The conversation between human and AI assistant.
[|Human|] My son took a hockey puck on the front of his shin bone 4 weeks ago. It now appears he has a small lump right on the front of the shin where he took the puck. It is a hard lump, but he is experiencing no discomfort. Could it be a hematoma collected there, or callous material?
[|AI|]  Hi ! Good morning. I am Chat Doctor answering your query. Even though a clinical examination would be more helpful, with the history described, most likely your son did have a hematoma due to the trauma, which possibly got organized/calcified to give it a hard consistency. I would suggest you to show it to a general surgeon/orthopedic surgeon to be sure about the diagnosis, and further management if need be. I hope this information would help you in discussing with your family physician/treating doctor in further management of your problem. Please do not hesitate to ask in case of any further doubts. Thanks for choosing Chat Doctor to clear doubts on your health problems. Wishing you an early recovery. Chat Doctor.