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Pitfall in the diagnosis of ectopic pregnancy: immunocytochemical evaluation in a patient with false-negative serum beta-hCG levels

Taylor, R.N.; Padula, C.; Goldsmith, P.C.

Obstetrics and Gynecology 71(6 Part 2): 1035-1038

1988

ISSN/ISBN: 0029-7844
PMID: 2453820
Document Number: 315125
Tubal pregnancy specimens from a patient with undetectable serum beta-hCG levels and a control case with a low beta-hCG titer by radioimmunoassay were analyzed using peroxidase-antiperoxidase immunocytochemical localization of placental proteins. The results indicated that deficient production of beta-hCG by ectopic trophoblast was responsible for false-negative pregnancy tests in one patient.

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