om·pha·lo·site ( m f -l-s t , m-f l-)n. The underdeveloped member of unequal monochorionic twins that derives its blood supply from the placenta of the autosite and is not capable of independent existence or separation from the placenta. |
omphalosite
[om′falōsīt′]
Etymology: Gk, omphalos + sitos, food
the underdeveloped parasitic member of unequal conjoined twins united by the vessels of the umbilical cord. The omphalosite has no heart, derives its blood supply from the placenta of the autosite, and is incapable of independent existence after birth. See also allantoidoangiopagus.
omphalosite
the underdeveloped member of allantoidoangiopagous twins, joined to the more developed member (autosite) by the vessels of the umbilical cord.
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