Cancer during pregnancy is relatively rare, occurring in approximately 1 in 1,000 pregnancies.1-3 However, cancer is the second most common cause of death for women of childbearing age.4 As maternal childbearing age increases, the number of cancers diagnosed during pregnancy is expected to rise. The most common cancers affecting pregnant women in order of decreasing incidence are breast cancer, cervical cancer, lymphoma, ovarian cancer, leukemia, colorectal cancer, and melanoma.
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