Oliver Liddle, 19, had his leg amputated after finding aggressive bone cancer in his leg ... The pain didn’t go away for a week - and then a lump on his knee began to appear. Mr Liddle, who lives with ...

A lump in this area which is painful ... a sesamoid bone or an accessory bone (extra bone) in the calf musculature at it’s origin behind the knee. These accessory bones are not extremely common ...