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CANCER THERAPY IN PREGNANCY .i........i....... 1191
REPRODUCTIVE TRACT NEOPLASMS.. . . . . . . . . . . . .. 1192
BREAST CARCINOMA. . . . . . . . . . . . . . . . . . . . . . . . . .. 1200 THYROID CANCER.. . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1201 LYMPHOMAS.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1202 MALIGNANT MELANOMA. . . . . . . . . . . . . . . . . . . . . .. 1203
GASTROINTESTINAL TRACT . . . . . . . . . . . .. 1204 MISCELLANEOUS TUMORS. . . . . . . . . . . . . . . . . . . . .. 1204 of the more frequent ones are shown in Figure 63-1. Breast cancer is found in 1 in 5000 pregnancies, thyroid-1 in 7000, and cervical-1 in 8500 (Smith, 2003). These, along with lymphoma and melanoma, account for 65 percent of malignancy cases in pregnancy (Eibye, 2013). For some cancers-ovary, endometrium, and breast-evidence suggests that high parity is protective (Hognas, 2014).
During pregnancy, cancer management poses unique problems related to fetal concerns, and treatment must be individualized. Considerations include the type and stage of malignancy, the desire for pregnancy continuation, and inherent risks associated with modiying or delaying cancer treatment.