conjoined twins


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con·joined twins

monozygotic twins with varying extent of union and different degrees of residual duplication. The various types of union are named by the use of a prefix designating the region that is united and adding the suffix -pagus, meaning joined (for example, craniopagus [united by the heads], thoracopagus [united in thoracic region]); the various types of residual duplication are named by designating the parts duplicated and adding the suffix -didymus, or -dymus, meaning twin (for example, cephalodidymus, cephalodymus).

con·joined twins

(kon-joynd' twinz)
Monozygotic twins with varying extent of union and different degrees of residual duplication. The various types of union are named by the use of a prefix designating the region that is united and adding the suffix -pagus, meaning fused (e.g., craniopagus, thoracopagus); the various types of residual duplication are named by designating the parts duplicated and adding the suffix -didymus, or -dymus, meaning twin (e.g., cephalodidymus, cephalodymus).
References in periodicals archive ?
Upon delivery, the monster was a conjoined twin heifer calf with two heads, two necks and two trunk/ thorax with four forelimbs, joined together side by side laterally at rib-cage upto abdomen, followed by single umbilical cord, a lumbo-sacrum, a tail and a pair of hind limbs (Fig.
Cardiovascular evaluation of conjoined twins. Birth Defects 1967; 3: 52-65.
Most doctors believe that conjoined twins start off like other MZ twins, but the zygote doesn't split completely (see Nuts & Bolts, p.
As a consequence, Dreger tells us, for the last half-century clinicians have attempted surgical separation on almost all conjoined twins. The vast majority of these surgeries have been performed on infants or children; the Bijani twins were a notable exception.
For numerous reasons, conjoined twins have long been of medical, historical, and legendary interest.
In August of 2000, the first legal case involving the surgical separation of conjoined twins arrived in a British courtroom.
There are two prevailing theories as to the origin of conjoined twins. The first involves the incomplete fission of a single zygote that results in monozygotic conjoined twins (Baron et al, 1990; Smith & Jeraj, 1996; Spencer, 2000).
The prime minister said the medical institutions which were involved in the surgery of the conjoined twins will have to be more developed and modernised in the light of their experience.
The staff at world-renowned children's hospital Great Ormond Street know this better PICK OF THE DAY THE CONJOINED TWINS: AN IMPOSSIBLE DECISION BBC2, 9pm than most.
PICK OF THE DAY THE CONJOINED TWINS: AN IMPOSSIBLE DECISION BBC2, 9pm AS MEDICAL science advances at a rapid rate, and the procedures medics are capable of performing constantly grow, there can be dilemmas over when it is appropriate to treat a patient, and when it would be more ethical not to intervene.
Conjoined twins Marieme and Ndeye from Senegal have defied all expectations by living to two and a half years old.