الفهرس 
Title : Assessment of lateral injection technique using both blue dye and radioactive nano colloid to identify sentinel lymph node in early breast cancer
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Abstract
Sentinel lymph node is the first regional lymph node that drains the lymph from the primary tumor. It is potentially the first node to receive the seeding of lymph-borne metastatic cells. Sentinel lymph node biopsy (SLNB) is the gold standard for axillary assessment of patients with early breast cancer (without axillary metastases on clinical and radiological examination). Internationally accepted sentinel lymph node biopsy methods currently use a radioactive tracer, different variations of vital stains or the combination of both. Due to its lymphatic tropism, radioactive tracer can increase the chances for SLN identification. However, Blue dye is still widely used with comparable results. The classical sites for injection of the blue dye are retro-areolar and peri-tumoral. With a considerable rate failure to identify SLN especially with large breast size, inexperienced surgeons, and obstruction of the peritumoral lymph vessels by the tumor. Those patients end up with formal ALND with greater morbidity, also smearing of the breast surgical field with the blue dye can be inconvenient if the injection was peri-tumoral. Our aim is to compare the effectiveness of lateral blue dye injection at the upper outer quadrant to the classic retro-areolar or peri-tumoral injection in order to identify the SLN