How long will it take to resolve a 10cc seroma?

Your seroma may resolve over the next few weeks on its own as it is very small.  It could also be drained in the office and would resolve more quickly.  Seroma's can occur in 5-10% of patients after abdominoplasty, less frequently in areas of liposuction.  It is a collection of fluid, not blood that the body does not resorb so it accumulates.  Seromas can easily be drained in the office with minimal discomfort.  Best of luck with your recovery.  
Raymond Jean MD Board Certified Plastic Surgeon Bryn Mawr, Philadelphia PA