Unexplained dark bruise, doesn’t hurt, white in the middle,

Patient: Unexplained dark bruise, doesn’t hurt, white in the middle, hasn’t lightened since Saturday and it’s Friday…on the inside/side of my knee…I’m a 29 female…not on meds

Symptoms: Unexplained bruise, doesn’t hurt, white spot in middle, hasn’t lightened, noticed it on Saturday and it’s Friday…

Images:
Unexplained dark bruise, do...-1

Doctor: