Sequential planar gamma images (left to right, 2 hrs, 18 hrs, 51.5 hrs and 75 hrs after injection) in one pt after ID injection of mDC. The arrow indicates injection site over the right deltoid in the raised arm (shown as outline) with subsequent progressive accumulation of cells into afferent axillary LN. Conclusion ID and SC images suggest mDC track more consistently to LN, whilst IV mDC cleared more slowly from lungs at 24h compared to imDC.