• fetus
  • The undeveloped twin is defined as parasitic, rather than conjoined, because it is incompletely formed or wholly dependent on the body functions of the complete fetus. (wikipedia.org)
  • Fetus in fetu sometimes is interpreted as a special case of parasitic twin, but may be a distinct entity. (wikipedia.org)
  • The parasitic twin, little more than a torso with or without legs, receives its blood supply from the host twin by means of an umbilical cord-like structure, much like a fetus in fetu, except the acardiac twin is outside the host twin's body. (wikipedia.org)
  • The blood received by the parastitic twin has already been used by normal fetus, and as such is already de-oxygenated, leaving little developmental nutrients for the acardiac twin. (wikipedia.org)
  • Kyle's mother explains parasitic twins and fetus in fetu, leading Stan to attempt to open his head with an ice pick to release a supposed parasitic twin. (wikipedia.org)
  • early
  • While it is thought that the classical TRAP/Acardius sequence is due to a retrograde flow from the umbilical arteries of the pump twin to the iliac arteries of the acardiac twin resulting in preferential caudal perfusion, acardius acormus is thought to be a result of an early embryopathy. (wikipedia.org)
  • pair
  • citation needed] Parasitic twins occur when a twin embryo begins developing in utero, but the pair does not fully separate, and one embryo maintains dominant development at the expense of its twin. (wikipedia.org)
  • found
  • In My Big Fat Greek Wedding, one of the aunts tells the story of how in a lump on her back they found "my twin sister. (wikipedia.org)
  • known
  • A parasitic twin (also known as an asymmetrical or unequal conjoined twin) is the result of the processes that also produce vanishing twins and conjoined twins, and may represent a continuum between the two. (wikipedia.org)
  • controls
  • Furthermore, the study included 21 non-twin patients with ulcerative colitis, 18 non-twin patients with Crohn's disease, and 52 healthy controls matched for sex and age. (bmj.com)
  • body
  • The character Pinoko from Black Jack (manga) was originally a teratoma before Black Jack surgically extricates her from her twin, revives her, and gives her a synthetic body. (wikipedia.org)