Large Abdominal Ecchymosis: Your Dx?

May 9, 2014

This firm exquisitely tender mass developed after the 77-year-old woman fell a few days earlier. She had a history of an embolic cerebral stroke, for which she takes warfarin. Your Dx?

This firm exquisitely tender mass developed after the 77-year-old woman fell a few days earlier. She had a history of an embolic cerebral stroke, for which she takes warfarin.

To which of the following do you attribute the extensive bruising?