What is the dosage and volume of the intradermal injection?
A separate syringe containing 0.2mCi of unfiltered Tc-99m-Sulfur Colloid diluted in 0.05 ml sterile saline should be used. In patients with prior core needle or fine needle aspiration biopsies, the entire 0.05 ml should be injected intradermally in the skin immediately above the tumor site in the breast. In patients with prior excisional biopsies, the injection should be given on the side of the incision that directly faces the axilla and should be injected within 0.5 cm of the incision near the midpoint of the incision.
