Hello, my mother is 57 years old and has an unexplained pinkish ( with purple hues in spots) bruise on her outer forearm. it does not itch or hurt, but during work (meat slicing) she finds that the bruise changes in size (gets bigger than returns to size). It appears she has a small dot inside the bruise and another purplish dot approximately 1-2 inches away outside the bruise. The bruise extends across the outer forearm just above the elbow. With no other symptoms, should she be concerned?