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Am J Med Genet. 1993 Sep 1;47(3):333-41.

Fetus in fetu: molecular analysis of a fetiform mass.

Author information

1
Edward Mallinckrodt Department of Pediatrics, St. Louis Children's Hospital.

Abstract

Fetus-in-fetu is a rare condition presenting as a calcified intra-abdominal mass in the newborn infant. Over 50 cases of fetus-in-fetu have been reported since 1800. Karyotype analysis in 8 cases and protein polymorphisms in 4 documented identical findings in the host and fetiform mass. We report a case of fetus-in-fetu in a newborn female including cytogenetic and molecular studies of both the host and mass. Genotypic information from 7 polymerase chain reaction (PCR) assays representing 4 chromosomes demonstrates heterozygous and identical alleles in the infant and fetus-in-fetu at all loci studied. A review of the literature is provided including a discussion regarding the impact of molecular data on present hypotheses of fetus-in-fetu pathogenesis.

PMID:
8135277
DOI:
10.1002/ajmg.1320470308
[Indexed for MEDLINE]

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