Two-year-olds Tatiana and Krista Hogan are craniopagus conjoined twins. They are one of only 6 sets of twins in the world who were born conjoined at the head. Only 2% of conjoined twin births are craniopagus (1). Because the craniopagus twinning is so rare, there is a limited supply of observations that have been made about their condition. There is also a general lack of research looking at the condition of being a conjoined twin. Conjoined twinning presents profound physical differences. The physical immobility, health risks, and unconventional lifestyle that result from conjoined twinning motivate parents and doctors to separate twins if possible, and as early as possible.
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