Diagnosed cases of breast cancer rose by 260 percent and those of cervical cancer by 20 percent from 1980 to 2010, with the biggest hikes occurring in developing countries, according to global estimates reported on Thursday in The Lancet.

Identified cases of breast cancer around the world rose from around 640,000 in 1980, when 65 percent occurred in rich countries, to 1.6 million in 2010, of which 51 percent were among women in developing nations.