background: monozygotic monochorionic triplet pregnancy with conjoined twins is a very rare condition and is associated with many complications. case: in this study, we describe a monochorionic–diamniotic triplet pregnancy after in vitro fertilization with an intracytoplasmic sperm injection. at a gestational age of 6 weeks and 4 days of pregnancy one gestational sac was observed, and at a gest...

Background. We present here 2 cases of acute twin-twin transfusion occurred during vaginal labor in monochorionic-diamniotic twin pregnancies. Case. Fetal heart rate tracings showed tachycardia in the donor twin in the first case, while they showed reassuring patterns in both twins in the second case. Conclusion. These differences in changes of fetal heart rate in the donor twins following acut...

Fetus in fetu (FIF) is an extremely rare cause of infantile abdominal mass where a rudimentary, malformed monozygotic-diamniotic twin grows inside the other twin. We describe a male infant with double or twin fetuses in fetu. The diagnosis was made on a computerized tomography (CT) scan of the abdomen and confirmed on surgery. Surgical excision was done and the baby did well post operatively.

Fetal cholelithiasis is a rare finding during a third-trimester ultrasound with an average incidence rate of 0.07-1.15%. We report a case of fetal cholelithiasis in twins, observed in a patient with monochorionic diamniotic twin pregnancy hospitalized at our unit for signs of premature labor. We present the outcome of the 2 neonates with a clinical and sonographic follow-up. In addition, we off...

Fetus-n-fetu is a fascinating diagnosis explaining the development of ‘baby within a baby’. It results out of a monozygotic diamniotic twin pregnancy in which a twin is absorbed into the body of its sibling. The surviving twin often presents with abdominal mass and the diagnosis is only confirmed by surgical exploration. It is often mimics retroperitoneal teratoma on imaging and poses a challen...

Fetus in fetu is a rare developmental aberration, characterized by encasement of partially developed monozygotic, diamniotic, and monochorionic fetus into the normally developing host. A 4-month-old boy presented with abdominal mass. Radiological investigations gave the suspicion of fetus in fetu. At surgery a fetus enclosed in an amnion like membrane at upper retroperitoneal location was found...

Monoamniotic twins are known to be at risk of cord entanglement, and have an elevated perinatal morbidity and mortality associated with this. We present a case of cord entanglement in a monochorionic diamniotic (MCDA) twin pregnancy thought to be due to spontaneous septostomy. Unfortunately the cord entanglement was detected postpartum, and ultimately resulted in the demise of one of the twins....

We retrospectively evaluated a series of 18 monoamniotic and 7 pseudomonoamniotic (secondary to rupture in the membrane dividing monochorionic diamniotic twins) twin gestations managed after 20 weeks' gestation. There were no significant differences in the incidence of neonatal death or umbilical cord entanglement between the monoamniotic and pseudomonoamniotic twin gestations (33 versus 21%, P...