I: Clinical Aspects: Diagnosis and Management.- 1 The Epidemiology of Cancer in Pregnancy.- 2 Placental and Fetal Cancers.- 3 Breast Cancer and Pregnancy.- 4 Gynaecologic Malignancies in Pregnancy.- 5 Hematologic Malignancies in Pregnancy.- 6 Melanoma in Pregnancy.- 7 Rare Tumours in Pregnancy.- 8 Colorectal Cancer in Pregnancy.- 9 Radiologic Diagnosis of Cancer in Pregnancy.- 10 Pregnancy Derived Tumor Marker.- 11 Chemo and Radiation Therapy During Pregnancy.- 12 Management of Cancer in Pregnancy (Case Reports).- 13 Transplacental Carcinogenesis: Role of Chemicals, Radiation and Viruses.- II Comparative Aspects of Pregnancy Development and Tumour Biology.- 14 Metabolism of Chemotherapeutic Drugs by Maternal and Conceptus Tissues.- 15 Adverse Reproductive Outcome Potential of Cancer Therapies During Pregnancy.- 16 Immunomodulatory Analogies Between Trophoblastic and Cancer Cells and Their Hosts.- 17 Protective Role of Human Chorionic Gonadotrophin and Luteinizing Hormone Against Breast Cancer.- 18 Proliferation, Differentiation and Apoptosis in Pregnancy and Cancer.- 19 Controlled vs Uncontrolled Angiogenesis: Color Doppler Studies.- 20 Angiogenesis and Vasculogenesis in Pregnancy and in Tumor Development.- 21 Trophoblast Implantation Versus Tumor Invasion.- 22 Pregnancy Derived Compounds that Control Proliferation.- 23 Cancer and Pregnancy: Bioethical and Legal Dilemmas.- Epilogue Cancer and Pregnancy: a Reason for Hope.