Caudal duplication is an abnormality which usually affects the digestive, urogenital and even respiratory systems. It forms a graded series from slight duplication to near separation of two fetuses caudocranially. In some conjoined twins, duplication process may cranially proceed up to the head region. This kind of developed conjoined monocephalus twin has been reported in many domestic species...

Conjoined twins are a rare and often catastrophic obstetrical event. Although ultrasonography is widely used in the diagnosis of conjoined twins, it may fail to demonstrate the details in fetuses with complex anomalies, especially during late pregnancy. We present an omphalopagus conjoined twins case evaluated by HASTE magnetic resonance imaging, which showed the conjunction site and cranial an...

Conjoined twins are described by the conjoint trunk region as a result of defective monozygotic twinning (1). The prevalance ranges from 1 in 50 000 to 1 in 100 000 births in the world. Conjoined twins are incidental and very rarely, uncorrelated with heredity, maternal age and parity (2). Conjoined twins are cathegorized by the location of fusion and are always connected at identical anatomic ...

Conjoined twins are rarely observed, but heteropagus conjoined twins occur even less frequently. Heteropagus conjoined twins are asymmetrically conjoined twins, in which one twin is nearly anatomically normal (autosite), and the other twin remains anatomically incomplete (parasite) but physically attached to the autosite. Epigastric heteropagus conjoined twins (EHTs), referring to a parasitic t...

Conjoined twins are twins whose bodies are anatomically joined in utero. The degree to which the twins are attached can range from simple, involving skin and cartilage, to complex, including fusion of the skull(s), brain(s), or other vital organs. There are more than a dozen classifications of conjoined twins [3] but what they all tend to have in common is the sharing of the chorion [4], placen...

Conjoined twins are twins whose bodies are anatomically joined in utero. The degree to which the twins are attached can range from simple, involving skin and cartilage, to complex, including fusion of the skull(s), brain(s), or other vital organs. There are more than a dozen classifications of conjoined twins [3] but what they all tend to have in common is the sharing of the chorion [4], placen...

Since the publication of Optimality Theory (Prince & Smolensky, 1993), research on phonological acquisition has been exploring the explicative potential of constraint theories. This study is equally based on Optimality Theory. It attempts to analyze the acquisition of CVVC syllable structure by Brazilian Portuguese children and addresses the question of the use of Local Conjunction (Smolensky, ...

Craniopagus conjoined twins represent a rare phenom- enon of congenital malformation/ dysmorphism. The clinical pathology of this complex entity is reviewed and placed in perspective. Confusion surrounds the severity of craniopagus conjoined twins especially in relation to the difficulty of separation and subsequent outcome. Successful separation of craniopagus twins remains a rarity, however m...