<unk> (177Lu) oxodotreotide (INN) or 177Lu DOTA-TATE, trade name Lutathera, is a chelated complex of a radioisotope of the element<unk> with DOTA-TATE, used in peptide receptor radionuclide therapy (PRRT). Specifically, it is used in the treatment of cancers which express somatostatin receptors. Alternatives to 177Lu-DOTATE include yttrium-90 DOTATATE or DOTATOC. The longer range of the beta particles emitted by 90Y, which deliver the therapeutic effect, may make it more suitable for large tumors with 177Lu reserved for smaller volumes The U.S. Food and Drug Administration (FDA) considers 177Lu dotatate to be a first-in-class medication.
Lutetium 
Ovary
Callus
Serous gland
Breast shell
Tubex 
Areolar gland
Menstrual pad