"Crack skull missed on X-rays!"

Im writing this on behalf of a friend who was involved in a road traffic accident along with some others who He work with, he had to have his head stitched and was in a lot of pain ,had X-rays done of his skull and was told He could go home the same day and everything was fine,the crash was ten days ago he was rushed back to hospital with pains to his head which were horrendous turns out he has a fractured skull which was missed... Not happy at all! People need to wake up and seriously take care in what there doing here!