Sentinel lymph node biopsy is used for-

Ans is 'a' i.e., Breast carcinoma Sentinel Lymph Node Mapping and Biopsy* For breast cancer sentinel lymph node is the largest lymph node in axilla and is the first to receive the lymph and potential metastases drained from the breast.* Intraoperative lymphatic mapping and biopsy of the sentinel lymph node initially introduced for the staging of melanoma, has been similarly used for the detection of axillary metastases in breast cancer, where it has also become the accepted standard of care.* In both the cases the method provides for minimally invasive surgery, and its success is now stimulating attempts to introduce it in the staging of thyroid, gastric, colonic, lung and endometrial cancers.* In breast cancer surgery this technique avoids significant morbidity of axillary dissection and in experienced hands has proven to provide acceptable rates of metastatic identification.