ERBB2 and neoplasm: Further, according to the biodistribution study and the IVIS images in Figure 6, the DTX concentration after an IV injection of the HER2-LsbMDDs was highest at the tumor site, but with a similar DTX concentration to those for Tynen®, the LsbMDDs, and DNS-LsbMDDs in other organs of the heart, liver, spleen, lung, and kidney.