<prompt> Sentinel lymph node biopsy is done in all except:Ca vulvaCa cervixCa breastChoriocarcinoma  <response>: Ref: Dm to Textbook of Gynecology 5th ed pg.328Explanation:Sentinel lymph node is the first node that drains the primary tumourIn most cases there is a single sentinel lymph nodeThis node can be detected by intraoperative lymphatic mapping injecting methylene blue dye into the tumour or lymphoscintigraphy using technitium 99Uses in Gynecologic MalignancyCervical CaCa VulvaCa Endometrium 