DS2 (16) had a blow to his shin about a year agao. He complained about a lump, which is still there. `it is soft to palpate, and appears to move slightly when he flexes his foot downwards. It has changed recently, because when running in a hockey match at the weekend it increased in size, and his thigh muscle inflated, or in his words went stiff so he couldn't run properly. Doc has rushed through an ultrasound and all I have heard is that the radiographer couldn't see anything but he was concerned about the muscle inflating. Please, does anyone have any ideas? Apart from anything else, DS is insisting on going training.....