Fetus-in-fetu form of monozygotic twinning with retroperitoneal teratoma.
One of the commonest defects of blastogenesis is monozygotic twinning resulting in separate or conjoint twins, the latter including a category of internal, "endoparasitic," or fetus-in-fetu twins. We report the third known instance of endoparasitic twinning associated with a benign teratoma at age 1. The host, twin, and teratoma were monozygotic by DNA analysis.
Gilbert-Barness
Enid
E
Department of Pathology, University of South Florida, and Tampa General Hospital, 33601, USA. egilbert@tgh.org
Opitz
John M
JM
Debich-Spicer
Diane
D
Mueller
Thomas
T
Arnold
Sonya R
SR
Quintero
Reuben
R
D005260:Female; D005315:Fetal Diseases / Q000503:physiopathology*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D013724:Teratoma / Q000503:physiopathology*; D014430:Twins, Monozygotic