Conversation: The conversation between human and AI assistant.
[|Human|] I have a lump under the skin on my upper arm near shoulder.  It is about the size of a golf ball.  It seems to move when I roll it around a bit.  That area seems to be sore.  I see my doctor often, but he didnt seem too concerned about it.  I also have RA.  Should I be concerned?
[|AI|]  Hello, The soft lump which is movable might be soft tissue lesion as lipoma or sebaceous cyst. As your consultant has said not to worry or bother much about the issue, it is true to avoid stress. Keep a watch over the size and progress of the same, in case a rapid increase in size, pain or infection with redness over the area can alarm for surgery of the same. Hope I have answered your query. Let me know if I can assist you further.