Chilling pic shows 'demon' watching over unborn baby in ultrasound scan

A baby's ultrasound scan has gone viral and not for quite the right reasons. It seems there's more than just a baby in there and once you see it, you can't unsee it. At first sight, it looks like any other scan of an innocent foetus but look to the right of the photo and you'll get the chills. The eerie image was posted on imgur under the heading "A friend's ultrasound. When you see it...".

A grainy outline of what looks to be a woman has been spotted by many people who have looked at the picture. The picture has been viewed more than 500,000 times since being uploaded.