Hello Our son seems to have a hard lump on the top of his left foot. He is 14 yrs old and also has Down Syndrome, not sure if that has anything to do with it, but thought I would mention it, in case there is any link. He s had it for a few weeks now, we thought maybe it was from playing touch football. There is no discolour around the lump. Its approx. 5cm in diameter and 4cm high. He s not the easiest of patients to examine, so thought we d ask for your opinion. Thank you