Radiolabeled antibodies can add a dimension in the. diagnostic imaging
and staging of metastatic head and neck malignancies. In the oral cav
ity, oropharynx and larynx the vast majority of malignancies are squam
ous cell carcinomas. This common cellular origin makes it feasible to
search these neoplasms for appropriate tumor-associated antigens which
can be used for radioimmunoscintigraphy. The pretherapeutic staging o
f head and neck malignancies, including salivary gland tumors, is base
d on clinical findings and conventional radiology (computerized tomogr
aphy, magnetic resonance imaging, ultrasonography). The routine use of
monoclonal antibodies for imaging head and neck malignancies was made
possible by the production of several monoclonal antibodies to tumor-
associated membrane antigens. A review of the clinical trials reported
in the literature, and our own results, with In-111-labeled anti-carc
inoembryonic antigen (CEA) antibody in 42 patients are presented.