prosopothoracopagus

Conjoined twins attached by the face and chest; a variety of cephalothoracopagus. See conjoined twins, under twin. [prosopo- + G. thorax, chest, + pagos, something fastened]

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pros·o·po·tho·ra·cop·a·gus (pros″o-po-thor″ə-copґə-gəs) [prosopo- + thoraco- + -pagus] symmetrical conjoined twins united in the frontal plane, the fusion extending from the oral region through the thorax.