Immunoscintigraphy of ovarian endometriosis. A preliminary study

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Immunoscintigraphy with a radioiodinated anti-CA-125 monoclonal antibody successfully imaged ovarian endometriosis in two women, though sensitivity varied between cases.

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Abstract

CA-125 is a membrane antigen detected in the serum of some women with gynaecological disease including endometriosis. We attempted to use a radioiodinated anti-CA-125 monoclonal antibody, OC-125, to image ovarian endometriosis using immunoscintigraphy. Two women with significant endometriosis and normal serum CA-125 levels had positive immunoscintigraphy. In one woman, all areas of endometriosis were imaged; in the other, endometriosis in one affected ovary was seen, but uptake in the other ovary was less than the extent of the disease.

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Condition tags

endometriosis

MeSH descriptors

Endometriosis Ovarian Neoplasms Ovary Adult Antibodies, Monoclonal Antigens, Neoplasm Antigens, Neoplasm Antigens, Tumor-Associated, Carbohydrate Endometriosis Female Humans Middle Aged Ovarian Neoplasms Ovary Radionuclide Imaging

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Source provenance

europepmc
last seen: 2026-10-05T06:18:27.067365+00:00
pubmed
last seen: 2026-05-13T22:09:20.810540+00:00
unpaywall
last seen: 2026-10-05T06:32:29.880811+00:00
License: public-domain-us · commercial use OK · attribution required
Courtesy of the U.S. National Library of Medicine