Conversation: The conversation between human and AI assistant.
[|Human|] I discovered a very small lump on the left side of my neck about 3 days ago. Tonight I see that it has gotten quite a bit larger. And now it seems to have all but disappeared. Yet I can feel the very small lump. Can you give me some idea what this might be? Many thanks, Lena
[|AI|]  Welcome to Chat Doctor .1. Neck is a very complicated anatomy. 2. Depending on the area where it is located.3. It can be thyroid cyst/lymph node cystic mass/submandibular/parathyroid.4. Howevere you are saying its resolving - monitor for few days and if It's still persists.5. Get an appointment and get an ultrasound neck done to rule out and get definitive diagnose. Anything to ask ? Do not hesitate. Thank you.