Editing Potter sequence (section)

{{Short description|Abnormal appearance of a baby due to amniotic deficiency in the uterus}}
{{distinguish|Doege–Potter syndrome|Pott's disease}}
{{Infobox medical condition (new)
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| synonyms        = Potter's syndrome, Potter's sequence, oligohydramnios sequence
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'''Potter sequence''' is the atypical physical appearance of a baby due to [[oligohydramnios]] experienced when in the [[uterus]].<ref>{{DorlandsDict|nine/10045228|oligohydramnios sequence}}</ref> It includes [[clubbed feet]], [[pulmonary hypoplasia]] and cranial anomalies related to the oligohydramnios.{{clarify|date=May 2014|reason=Isn't Potter's sequence known as "Potter's sequence" and clubbed feet known as "clubbed feet"? [[Club foot]] does not mention Potter's sequence.}} Oligohydramnios is the decrease in [[amniotic fluid]] volume sufficient to cause deformations in [[morphogenesis]] of the baby.

Oligohydramnios is the cause of Potter sequence, but there are many things that can lead to oligohydramnios. It can be caused by renal diseases such as bilateral [[renal agenesis]] (BRA), [[atresia]] of the ureter or urethra causing obstruction of the urinary tract, polycystic or multicystic kidney diseases, [[renal hypoplasia]], [[amniotic rupture]], toxemia, or [[uteroplacental insufficiency]] from maternal hypertension.

The term ''Potter [[Sequence (medicine)|sequence]]'' was initially intended to only refer to cases caused by BRA;{{Citation needed|date=December 2008}} however, it is now commonly used by many clinicians and researchers to refer to any case that presents with [[oligohydramnios]] or [[anhydramnios]] regardless of the source of the loss of amniotic fluid.{{Citation needed|reason=this paragraph seems unlikely and is not referenced|date=May 2009}}