Technetium-99m-based Radiopharmaceuticals in Sentinel Lymph Node Biopsy: Gynecologic Oncology Perspective.

Technetium (99mTc)-radiolabeled colloids are popular tracers used to map lymphatic vessels and regional lymph nodes (LNs). The regional LN status is a significant determinant of cancer stage and patient prognosis, and strongly influences treatment. Regional LN dissection has become a part of surgical treatment.