### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Hello, I m a 21yr old girl. I recently developed a lump on the top of my left foot. it s about 2 in away (diagonally toward the middle of the top of my foot.) from my ankle. (I notice that it s near nerves.) and when i move my foot it moves with it. It s not hard or soft, and there is no discoloration. When i try to do physical activities, it gets a little bigger, and when i rest it gets smaller(no physical activity for the day) and it has a dull type of pain, but can sometimes hinder my walking when I ve tried to do physical activity, and the pain will become greater. Ice hurts it more, and heat does nothing, or so it seems. What is it? and should i be worried? Thank you ^^

### output:

Hi, Dear,Thanks for your query to Chat Doctor. Studied your query in full depth of its details. Reviewed it in context of your health concerns. I understood your needs for your health concerns. Based On the facts, You seem to suffer from-Bursitis of the tendon sheaths of the anterior of the ankle/ or it could be due to the Ganglion-arising out of Synovial of the tendon sheaths or the inflamed small joints of the left foot / or it could be due to the Synovitis with Synovial granulation causing painful lump on top of left foot, which hence increases with foot activity. I would suggest getting USG/CT/X-ray Ankle left, to differentiate and assess the cause of the foot lump, from the many causes as mentioned above. A Second Opinion from Ortho-Surgeon Would resolve your diagnostic ambiguity and would fix the exact cause, for the right treatment to start soon. Hope this reply would satisfy you and would help you to plan further treatment with your doctor there. Welcome any further query in this regard, which would be replied in next session. Wishing you fast and early recovery. Good Day!! Chat Doctor. N. Senior Surgical Specialist. S. Genl-CVTS