background : twin pregnancies are commonly associated with low birth weight (lbw) infants. most studies focus on growth of lbw compared with normal infants in singleton. however, there has not been any study on twins to com-pare lbw with normal birth weight (nbw) infants as a match control of the same twin. methods : this cohort study was conducted at healthcare centers of kashan, in 2013. twin...

this study was designed to investigate the effect of environmental factors on the appearance of polycystic ovaries (pco) during the first two decades of life. ninety-four female-female twins who underwent a transabdominal ultrasound at the royal hospital for women were sent a questionnaire asking about their birth details, feeding history as a baby, childhood illnesses and vaccination as well a...

dicephalic parapagus tribrachius conjoined twin is a very rare condition. we present a case of 5-days-old male dicephalic parapagus conjoined twins. the conjoined twins were diagnosed in 4(th) month of pregnancy by ultrasonography. the pregnancy terminates at 36 weeks by cesarean section and triplets were born. the babies were male conjoined twins and another healthy male baby. many congenital ...

cystic fibrosis is an inheritant autosomal recessive disease. it is associated with mutations in cystic fibrosis trans regulator gene (cftr) and has different presentations.we report two 2 month old female patients, products of a twin delivery presented with anemia, edema, hypoalbuminemia and pneumonia.after some work ups, diagnosis of cystic fibrosis was confirmed. this is an uncommon and inte...

This study was designed to investigate the effect of environmental factors on the appearance of polycystic ovaries (PCO) during the first two decades of life. Ninety-four female-female twins who underwent a transabdominal ultrasound at the Royal Hospital for Women were sent a questionnaire asking about their birth details, feeding history as a baby, childhood illnesses and vaccination as w...

one of the complications of twinning of mono chorionic mono amniotic gestations is conjointed twins. structural congenital malformations occur in 5 % to 7 % of twin gestations versus only 3 % of singleton births. most defects occurring in only one of the twin fetuses. occasional anomalies such as omphalocele sincenomalia heart defect one reported in both concordance. the structural defect commo...

To assess the relative contribution of genetic and environmental factors (particularly androgens) on circulating levels of lipid fractions, serum androgen and lipid fractions were measured in 34 pairs of female-female twins aged from 15- 45 years, some of whom were discordant for polycystic ovary syndrome (PCOS) diagnosed by ultrasound. Nineteen pairs were monozygotic twins (MZ) and 15 pai...

Ch?ng (Chang) and ?n (Eng) Bunker were conjoined twins [2] in the nineteenth century in the United States, the first pair of conjoined twins [2] whose condition was well documented in medical records. Conjoined twins are a rare condition in which two infants are born physically connected to each other. In their youth, the brothers earned money by putting themselves on display as curiosities and...