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A normal 46,XX infant with a 46,XX/ 69.XXY placenta: A major contribution to the placenta is from a resorbed twin
Author(s) -
Callen D. F.,
Fernandez H.,
Hull Y. J.,
Svigos J. M.,
Chambers H. M.,
Sutherland G. R.
Publication year - 1991
Publication title -
prenatal diagnosis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.956
H-Index - 97
eISSN - 1097-0223
pISSN - 0197-3851
DOI - 10.1002/pd.1970110705
Subject(s) - placenta , fetus , biology , twin pregnancy , andrology , pathological , placenta diseases , obstetrics , pregnancy , medicine , genetics
A predominantly triploid 69,XXY placenta was found associated with a normal 46,XX infant. Therefore, a triploid placenta is apparently capable of supporting normal fetal development. The chromosome and pathological results support the conclusion that the triploid placenta originates from a ‘vanishing twin’ pregnancy. This case is unusual in that persistence of the placenta from the vanished twin has virtually replaced most of the normal placenta.