Can a radiologist differentiate wormian bones from fractures in an infants skull CT?

I was just wondering if a radiologist can tell the difference between a wormian ridge/bone and a fracture when looking at a head CT of a child. Our grandson jumped off of the sofa (onto a concrete slab floor with a thin carpet covering it) onto his head and after the CT we found out he has wormian bones. But, the overprotective doc claims our grandson has a fracture and his trauma was non accidental. The leap was witnessed and both parties involved passed polygraphs.
Can they really tell the diff between a fracture and a wormian bone with 100% certainy?

I've just read this article on The GE Medcyclopedia page ( they make several innovative medical scanning & imaging machines). The term is named after a Danish anatomist in 1586.Presence of these intra-sutural bone deposits are commonly associated with lamboid suture of the skull in infants.They are considered pathological when they reach a size of 5x4 mm or greater,less than 10 in number,and are arranged in a mosaic pattern.There are several pathological associations to these small bones,but the majority of these findings are simply normal varients. Depending on the childs age,and any previous head CT's to compare this recent one,it would be tricky. I would have the local Radiologist consult with a Professor of Radiology at your state's Medical school,or at its teaching Hospital Medical Center.Medical staff are trained to react to any cases of abuse,real or suspected.By law they must report their findings. Please try to curb your fearless grandson. When my son was small,he loved to jump off things and tried to fly on many occasions.! Take care. SW RNP