conjoined twins

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conjoined twins,

congenitally united organisms that are complete or nearly complete individuals, historically known as Siamese twins. They develop from a single fertilized ovum that has divided imperfectly; complete division would produce identical twins, having the same sex and general characteristics. Conjoined twins remain attached at the abdomen, chest, back, or top of the head, depending on where the division of the ovum has failed. In some instances the individuals are joined only by a band of musculofibrous tissue and can be separated surgically, but in other instances they share vital organs and separation may not be possible. Sometimes an ovum divides in such a way that an organism develops having one body and two heads, or one head and two sets of limbs. About half of all conjoined twins are stillborn, and many die within a week or so of birth. When they do survive, fatal illness in one dooms the other unless separation is possible. The name Siamese twins derives from the most famous of conjoined male twins, Chang and Eng, born in Siam (Thailand) of Chinese parents in 1811. They were exhibited in Barnum's circus for many years; although never separated, they married and fathered a total of 22 children. They died within 2 hours of each other in 1874. See also multiple birthmultiple birth,
bringing forth of more than one offspring at birth. Although many smaller mammals bear several young at a time, multiple births are relatively uncommon in humans and other primates.
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References in periodicals archive ?
The chest, abdomen and pelvis are the most common places for conjoined twins to be attached, but they can also be connected at the spine or the head.
The conjoined twin fetuses were separated by dissecting flexible skin fold at right rib-cage of protruded dead fetus.
Thoracopagus conjoined twins with a fused heart always have complex abnormal cardiac anatomy (4-7).
In August of 2000, the first legal case involving the surgical separation of conjoined twins arrived in a British courtroom.
Their mother, 18-year-old Laura Williams, from Shrewsbury, Shropshire, is Britain's youngest mother to give birth to conjoined twins.
Classification of conjoined twins is based on the site of union.
Mrs Williams, 18, from Shrewsbury, became the youngest mother of conjoined twins when she gave birth by caesarean section.
Their mother, 18-year-old Laura Williams, from Shrewsbury, Shropshire, was Britain's youngest mother to give birth to conjoined twins.
Love and Prince are the the third set of conjoined twins to be successfully separated at Wadia Hospital.
Khartoum, Safar 17, 1439, Nov 6, 2017, SPA -- Sudanese Ambassador to the Kingdom of Saudi Arabia Abdel Basset Badawi Al-Senousi thanked Custodian of the Two Holy Mosques King Salman bin Abdulaziz Al Saud and Crown Prince Mohammed bin Salman bin Abdulaziz, Deputy Premier and Minister of Defense, on the occasion of the successful separation of a Sudanese conjoined twins.
Summary: New Delhi [India], Oct 27 (ANI): In a rarest of rare case, a pair of conjoined twins from Odisha was successfully separated by doctors at the All India Institute of Medical Science (AIIMS) after a marathon surgery on Thursday.
MULTAN -- A woman has given birth to conjoined twins as head of one new born is attached to chest and belly of the other kid, who has normal body parts, with proper functioning.