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

### input:
Hi, about 14 years ago, when I was 12, I feel and hit my chest in the handle bars of a bicycle. I went to ER because the handle bar actually moved and punctured my left side under my armpit. Well not 14 years later, I have a bump in my chest where the handle bar origininally hit me and until about a month pain in my chest comes and goes and sometimes I even feel short of breath. What do I do? 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- a Chronic Abscess in the armpit, which is caused due to the chronic infection of the post-traumatic hematoma developed due to the bicycle handle bars 14 yrs ago.1 myths off and on pain indicates a pulsatile swelling ?either Abscess? Or AV fistula with Lump hematoma or ? Post-traumatic Aneurysm eroding the ribs and chest wall, causing short of breath from pleuritic pain. Remedy-I would assess the lump with Physical Examination and by USG or CT chest studies. And would plan Corrective Surgery thereafter, depending on the cause of it. A Second Opinion from 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