Answer:
What do you mean deformed? You probably have weak scapular muscles and may even have spasms in any one or more of your scapular muscles.
Addition:
Thats called a winging scapula and that means that you have weak serratus anterior muscle. I recommend that you go to see a physical therapist to help you strengthen you scapular muscles.
Are you sure it is not a fatty tumor that is beginning to develop? I have one on my scapula and that seems to be a place where they are prone to pop out. I need to make an appointment to have mine surgically removed. They are not dangerous but can become large and protruding. Have a doctor check it out.