Prenatal diagnosis of a benign facial tumor.

We report a case of prenatal diagnosis of a benign fetal skin tumor on the chin made at 27 weeks of pregnancy by ultrasound scan. We report this case given the uncommon diagnosis and the unique fetal facial profile seen on ultrasound, resembling the image of an ancient Egyptian pharaoh which made us call it 'Ramses' sign' as a future mnemonic aid to sonographers.