M A Radiolabeled Anti-Carcinoma

**Semantic type:** Amino Acid, Peptide, or Protein|Indicator, Reagent, or Diagnostic Aid|Pharmacologic Substance

**Definition:** A radiolabeled monoclonal antibody (also known as B72.3) directed against the tumor-associated glycoprotein (TAG)-72 with potential use in cancer radioimmunodiagnostics, radioimmunoscintigraphy, and radioimmunoguided surgery (RIGS). (TAG)-72 is an antigen that may be expressed by breast, colorectal, and ovarian carcinomas. (NCI04)