7e26d8ac_Eng_and_Chang_Bunker__Scientific_Term
[Description] Twins are joined at the cranium (the top of the head or skull). Occuring in just 2% of all conjoined twin cases, this is a very difficult type of twin to separate although advances in medicine have led to more than 35 successful separations. Two female craniopagus twins were successful separated in Lithuania in 1989, for example. [Scientific Term] 
Craniopagus
C r a n i o p a g u s
T h o r a o p a g u s
P y g o p a g u s
I s c h i o p a g u s
O m p h a l o p a g u s
D i c e p h a l u s
Eng and Chang Bunker
Scientific Term