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The amniotic adhesion malformation complex associated with short or absent umbilical cord
1Pathologisches Institut, Universität München, F.R.G.
European Journal of Obstetrics, Gynecology, and Reproductive Biology
|September 1, 1988
Summary
Amniotic adhesion malformations, causing limb amputation and body defects, present diagnostic challenges. A recent cluster of cases highlighted shortened umbilical cords as a common feature, distinct from typical amniotic bands.
Area of Science:
- Obstetrics and Gynecology
- Developmental Biology
- Clinical Genetics
Background:
- Amniotic adhesion malformations (AAMs) encompass a range of fetal abnormalities, including limb defects and cranial malformations.
- The varied presentation of AAMs often complicates diagnosis.
- Historically, pathogenesis is linked to early amnion rupture and subsequent fetal entanglement.
Observation:
- Eight cases of the amniotic adhesion malformation complex were observed within a seven-month period.
- This clustering of cases is considered exceptional.
- A consistent finding across all eight subjects was a missing or significantly shortened umbilical cord.
Findings:
- While amniotic bands are considered a hallmark of AAMs, they were only identified in two of the eight cases.
- The prevalence of shortened or absent umbilical cords in this cohort suggests a potential alternative or associated pathogenic mechanism.
- The diagnostic difficulty of AAMs is compounded by the varying presentation and potential absence of classic amniotic bands.
Implications:
- This observation necessitates a re-evaluation of the diagnostic criteria for amniotic adhesion malformations.
- Further research into the role of umbilical cord abnormalities in AAMs is warranted.
- Understanding these variations can lead to improved diagnostic accuracy and management strategies for affected pregnancies.