ilioxiphopagus

il·i·o·xi·phop·a·gus

(il'ē-ō-zī-fop'ă-gŭs),
Conjoined twins in which the fusion extends from the xiphoid process to the iliac region. See: conjoined twins.
[ilio- + xiphoid, + G. pagos, fixed]

ilioxiphopagus

(ĭl″ē-ō-zī-fŏp′ă-gŭs) [″ + Gr. xiphos, sword, + eidos, form, shape, + pagos, thing fixed]
Twins joined from the pelvis to the xiphoid process.