Conversation: The conversation between human and AI assistant.
[|Human|] Hi, My daughter (18) has a very small lump that seems to come and go under her left shoulder (front of body, not back). It s less than 1/2 inch long and maybe 1/4 inch wide. She says it stings a little when you touch it, but there s absolutely nothing on the skin s surface. It was there a few days ago, then disappeared and today it s back, and there seems to be another one parallel to it. Any suggestions as to what this may be? I feel that if I take her to the doctor they re going to have no idea... so I might as well do a lot of homework first. Thanks!
[|AI|]  Hi.based from your description, it could be a lipoma (fatty deposit), fibrous (fibrous tissue formation) or a cystic (sebaceous or gelatinous) formation. If the lesion is persistent and is bothersome for her, a consultation with a doctor, preferably a general surgeon, is best for clinical evaluation. Diagnostics such as x-ray and ultrasound may be requested. Definitive management is excision biopsy and/or according to her diagnostic results, management will be directed accordingly. Hope this helps. Good day!!~ Chat Doctor.