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Related Experiment Videos

Pygomelia in a C3H/Crl mouse: case report.

S H Rao1

  • 1Centre for Cellular and Molecular Biology, Hyderabad, India.

Laboratory Animals
|July 1, 1992
PubMed
Summary

A rare congenital malformation, pygomelia (extra hind limbs), was observed in a C3H/Crl mouse pup. This finding represents the first documented instance of this specific limb anomaly in mice.

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Area of Science:

  • Developmental biology
  • Mammalian genetics
  • Congenital malformations

Background:

  • Pygomelia is a rare congenital anomaly characterized by the presence of supernumerary limbs.
  • Understanding the genetic and developmental basis of limb development is crucial in mammalian research.

Observation:

  • A male C3H/Crl mouse pup presented with fully formed, albeit underdeveloped, accessory hind limbs attached to the caudal region.
  • The anomaly, termed pygomelia, was noted at birth and did not appear to impede the pup's general health initially.

Findings:

  • This case documents the first occurrence of pygomelia in the C3H/Crl mouse strain.
  • The presence of pygomelia in this model suggests potential genetic or teratogenic factors influencing posterior appendage development.

Implications:

  • This finding provides a novel model for studying the genetic underpinnings of limb malformations.
  • Further research into this case could elucidate developmental pathways involved in axial and appendicular skeleton formation.
  • Understanding such anomalies contributes to broader knowledge of birth defects in mammals.

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