<prompt> Brachytherapy is used in:Stage Ib Ca cervixOvarian CaStage IV Ca vaginaStage II fallopian tube Ca  <response>: Ans. is a, i.e. Stage 1b Ca cervixRef: Dutta Gynae. 4thed, p352-3, 342; Shaw 15thed, p414 Radiotherapy is recommended in advanced stages of Ca cervix i.e. stage IIB onwards.Q Brachytherapy is commonly used. For larger tumors initially external radiation then brachytherapy is given. In small tumors brachytherapy is given first followed by external radiation. For stage IB and IIA - both surgery and radiotherapy yield similar results. There is very little scope of radiotherapy in ovary tumors. Only Granulosa cell tumor and dysgerminoma are radiosensitive and in them also external radiotherapy is instituted for elderly woman. - Dutta 5thed, p365-8 Vaginal squamous cell Ca is only moderately sensitive to irradiation. In all advanced cases exenteration operation is done. - Shaw 14thed, p358 Fallopian tube carcinoma: Total hysterectomy with Bilateral Salpingo-oophorectomy along with omentectomy followed by external pelvic radiation is the Treatment of Choice in cancer of Fallopian Tube. -Dutta Gynae 5thed, p356 