My situation is similar to DrMommy. My 16 month old just got over a fever and cold, he has a small rice grain size lump in the back of his head. It is sort of hard like cartilage , movable and it does not cause him any pain. This has caused me a lot of worry and my son has a doctor's appointment tomorrow at 9:45 am. I'll update you on what the pediatrician tells me. I have a question for DrMommy; were you able to come to a conclusion as to what the bump on your daughters head was?