prosopopagus

pros·o·pop·a·gus

(pros'ō-pop'ă-gŭs), Unequal conjoined twins in which the parasite, in the form of a tumorlike mass, is attached to the orbit or cheek of the autosite. See: conjoined twins. Synonym(s): prosopagus [prosopo- + G. pagos, something fastened]

prosopopagus

(prŏs″ō-pŏp′ă-gŭs) [″ + pagos, a thing fixed] Unequal conjoined twins in which the parasite is attached to some part of the face other than the jaw.