This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Radiotherapy, Subject name: Radiology
[{'content': "Which one of the following is not sensitive to chemo- therapy in advanced stage? \nSelect and explain. \nA. Pancreatic carcinoma, B. Ewing's carcinoma, C. Wilm's tumor, D. Ovarian carcinoma", 'role': 'user'}, {'content': "Answer: A \nExplanation: (A) Pancreatic carcinoma # Surgery is the Treatment of Choice in:> Lower esophageal CA, CA stomach, CA colon, CA pancreas, hepatocellular CA.> Radiotherapy is the Treatment of Choice in:> CA. s of oral cavity, lip, tongue, cheek, nasopharynx, oropharynx, hypopharynx, larynx nasal cavity, skin (except melanoma), cervix, seminoma testis, early hodgkin's disease, medulloblastoma (after surgical debulking).> Chemotherapy is the Treatment of Choice in: Acute & chronic leukemias, Advanced Hodgkin's disease, Advanced NHL, Testicular teratoma, Choriocarcinoma, Small cell lung cancer, Neuroblastoma.> Malignancies curable with Chemotherapy 70-90% cure rate. Testicular teratoma or seminoma, Choriocarcinoma (in women), Hodgkin's disease, Wilms' tumour; embryonal rhabdomyosarcoma 40-60% cure rate: Childhood acute lymphoblastic leukaemia, Burkitt's lymphoma (endemic variety), Ewing's sarcoma.> 20-30% cure rate: Non-Hodgkin's lymphoma (diffuse large-cell), Adult acute lymphoblastic leukaemia < 5% cure rate: acute myeloblastic leukaemia> Malignancies responsive to ChemotherapyLow-grade lymphomas; myeloma; chronic leukaemias Breast cancer; Ovarian cancer; Small-cell lung cancer.", 'role': 'assistant'}]