"I am really scared. I had a lump come up on my breast bone underneath my breast about 4 years ago. I had a scan and the doctor said it was a cyst. I have also had a clear mammogram in the meantime. Today I went to see a dermatologist and she thinks it is skin cancer. It is now quite big - about 2 inches and a couple of mm deep. They are sending me for a biopsy and scan as soon as possible."