Hi,Dear,Thanks for your query to HCM.
Studied your query in full depth of its details.Reviewed it in context of your health concerns.
Based On the facts,You seem to suffer from-
Aspirin induced bleeding tendency which gave rise to
hematoma Lump on the back.The friction while
massage for a long sitting might have caused the
bruise,which bled due to the aspirin induced clotting defect,causing contiued bleeding giving rise to quarter size lump on the back.
USG / CT study if need be to assess the extent of damage to the bones and soft tissues of the back,would fix the cause of such a lump after prolonged sitting on massage chair.
Long term use of the Extra strength excedrine which contains aspirin ,caused this hugh lump from meagre/trifle trauma to back.
You should hence go to ER-To check the Bleeding and clotting time defect if any as it would need special treatment from Sugeon / Physician Team.
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.
.
Good Day!!
Dr.Savaskar M.N.
Senior Surgical Specialist
M.S.Genl-CVTS