Conversation: The conversation between human and AI assistant.
[|Human|] Hi, may I answer your health queries right now ?  Please type your query here...I have a lump on the  back of my head i havent thought anything of it for awhile but  now i feel it i believe it has grown and when i do i dont feel well and my head has a dull ache around the area. what do think
[|AI|]  Welcome to Chat Doctor. 1. The possible cause could be lipoma in the first place - painless mass with dull ache.2. The other possible cause could be infective cause with the collection of the pus with in, followed by a Desmond in the bone.3. In this case I would recommend an ultrasound scan to evaluate the lesion weather solid cystic, muscular or osseous, and where it is extending to.4. If mass evaluated an FNAC- fine needle aspiration cytology will be helpful to find out cell nature.5. Dependind of findings a CT If necessary to make sure that there no skull or brain involvement. 6. In case of lipoma followup is needed. Good luck. Hope I have answered your query.Anything to ask do not hesitate. Thank you.