In addition, CCK2 receptors are overexpressed in MTC, and scintigraphy DOTA-linked CCK agonists such as 111In-DOTA-CCK, 111In-DOTA-minigastrin 11, and 99Tc-demogastrin 2 for diagnostic imaging of MTC have yielded variable results (93). The gene discussed is CCKBR; the disease is medullary thyroid gland carcinoma.