Is This A Mole??

My 10 month old has had this spot on his arm for some months now, and at first I thought it was a blood blister from possibly being pinched or something idk, but it hasn’t gone away and it’s a little raised. Could it be a mole? I’ve never seen one like it, but who knows. I’m asking his pediatrician about it at his next appointment. But I wanted to get some opinions!