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Original Articles

Conjoined Twinning in Mammalian Teratology

Pages 353-357 | Received 01 Aug 1968, Accepted 12 Aug 1968, Published online: 29 Apr 2013
 

Abstract

Three cases of conjoined twinning have been found in the golden hamster following treatment of the mothers with three different known teratogens: vitamin A, dimethyl sulfoxide (DMSO), and urethan. The twinning impetus which results in monozygous (MZ) twinning may thought of as an abnormal phenomenon in itself. This form of twinning in many cases is associated with a high intrauterine mortality, a high rate of situs inversus viscerum, severe developmental malformations associated with placental vascular abnormalities, discordance in organ development, and conjoined twinning.

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