The National Cancer Center and others have announced that when a woman with cervical cancer gave birth, cancer cells migrated and the child subsequently developed lung cancer.
This is the first such report in the world, and the research group says it is important to get a cervical cancer vaccine to reduce the risk.
Groups such as the National Cancer Center have analyzed the genes for cancer cells in the lungs of two 1-year-old and 6-year-old boys diagnosed with lung cancer.
Both had their mother diagnosed with cervical cancer, and analysis revealed that the lung cancer was of mother origin.
It is extremely rare for a child to develop lung cancer, and the research group believes that during childbirth, inhaling amniotic fluid containing cancer cells in the uterus led to the transfer to a baby and then lung cancer. is.
It has been known that cancer has spread to children through the blood flowing through the mother's placenta, but it is said that this is the first case in the world to be reported.
Vaccination is important to reduce the risk, and the research group says that if a cervical cancer is found before childbirth, a caesarean section can prevent the transfer to a child.
Chitoyo Ogawa, director of the Department of Pediatric Oncology, National Cancer Center Hospital, said, "Reducing the chances of getting cervical cancer will prevent these patients from appearing. About 2,800 people with cervical cancer each year. I hope that fewer people will die from vaccination because they are dead. "