A 23 year-old girl in annual general check-up with raised CA 19-9= 230u/mL.
Ultrasound detected a mixed tumor of the right ovary.
MSCT confirmed the right ovary teratoma and normal chest X-ray.
Endoscopic surgery removed the right ovary teratoma and the value of CA 19-9 comes back to normal=23.9u/mL.