Fetus with two separate heads
MRI showing a fetus with two separate heads, a common thorax, abdomen and pelvis with a single pair of upper and lower limbs!There are nearly a dozen different types of conjoined twins. One of the most common classifications is thoracopagus twins. These twins are connected at the upper portion of the torso.Thoracopagus twins share a heart, which, depending on how closely they are joined, makes it nearly impossible to separate them and save them both. That type make up about 40% of all conjoined cases.Another common type of conjunction is called omphalopagus, where twins are connected from the breastbone to the waist. About 33% of all conjoined cases are categorized as omphalopagus. These twins may share a liver, gastrointestinal or genitourinary functions, but rarely share a heart.One of the rarest types of conjoined twins is craniophagus twins, which are joined at the cranium or head. In fact, only 2% of all conjoined twins are joined in this way.
