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Diagnostic Clue in a Neonate with Amniotic Band Sequence
Raffaele Falsaperla1, Marta Arrabito2, Piero Pavone2
1Neonatal Intensive Care, AUO San Marco-Policlinco, University of Catania, Catania, Italy.
Case Reports in Pediatrics
|October 16, 2020
Summary
Amniotic band syndrome (ABS) can cause limb malformations. This case suggests an extrinsic factor may be the cause, as the malformations were asymmetric and affected only the extremities.
Area of Science:
- Developmental biology
- Clinical genetics
- Teratology
Background:
- Amniotic band syndrome (ABS) is a congenital disorder impacting limbs and occasionally other body parts.
- Etiology is debated, with intrinsic (genetic) and extrinsic (physical disruption) factors proposed.
- Understanding ABS etiology is crucial for diagnosis and management.
Observation:
- A newborn presented with congenital malformations affecting both hands and the right foot.
- The malformations were asymmetric, indicating a localized event.
- No internal organ involvement was observed.
Findings:
- The asymmetric presentation and isolated limb involvement in this case support the extrinsic factor hypothesis for ABS.
- This specific case highlights a localized disruption rather than a systemic genetic issue.
Implications:
- Findings may refine our understanding of ABS pathogenesis.
- Supports the role of external constrictive forces in ABS development.
- Could influence future diagnostic approaches and risk assessment for ABS.

