Despite physiologic uptake of isotope by endogenous mouse NIS (mNIS) in stomach, salivary glands and thyroid, resolution of imaging of T-cell accumulation in the tumors was excellent, particularly in whole-body videos, where the tumor localization of CAR T cells is clear in the 4P28ζN-treated animal day 9 post T-cell infusion (Movies 1–6), and derived still images (Fig. 5d). Here, SLC5A5 is linked to neoplasm.