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Agnathia-holoprosencephaly with tetramelia
1Children's Hospital, Camperdown, Australia.
Clinical Dysmorphology
|July 1, 1992
Summary
This study describes a rare lethal congenital malformation complex involving agnathia (absence of the jaw) and holoprosencephaly (brain malformation). Tetramelia (limb malformation) was also observed in the fetus.
Area of Science:
- Medical Genetics
- Developmental Biology
- Teratology
Background:
- Agnathia is a rare congenital anomaly characterized by the absence of the jaw.
- It can occur as an isolated defect or in association with other severe malformations.
- Associated anomalies include holoprosencephaly, situs inversus, and visceral abnormalities.
Observation:
- This report details a specific case of a fetus diagnosed with a lethal malformation complex.
- The complex included agnathia and holoprosencephaly.
- Tetramelia, a condition involving malformed limbs, was also a notable feature in this fetus.
Findings:
- The fetus presented with a severe combination of agnathia and holoprosencephaly.
- The co-occurrence of tetramelia further complicated this rare congenital disorder.
- This case highlights the extreme end of developmental abnormalities.
Implications:
- Understanding such complex malformations aids in diagnosing and counseling for rare genetic disorders.
- Further research into the genetic and environmental factors contributing to agnathia-holoprosencephaly is warranted.
- This case contributes to the literature on severe congenital anomalies and their phenotypic variability.