Conversation: The conversation between human and AI assistant.
[|Human|] I just discovered a small (1/2 inch) hard lump beneath the skin of my left calf muscle.  When I roll my finger over it, the skin moves but it doesnt move, and there is absolutely no pain.  Can anyone give me any possibilities?  If it requires a trip to my PCP that isnt a problem, just want to make sure this isnt a big deal first.  Thank you very much.
[|AI|]  Hi.it is best if you consult with a doctor, preferably a general surgeon, for medical and physical examination. Based from your description, it could be a cyst (a sebaceous or a gelatinous type). It could also be a fibrous or a lipoma. These lesions can occur anywhere in the body and have the tendency to recur. Other tumor types, such as malignancy, much also be ruled-out. Further diagnostics and management (medical and/or surgical) will be directed accordingly. Hope this helps. Good day!!~ Chat Doctor.