Ectrodactyly and syndactyly in a common marmoset (Callithrix jacchus)

Area of Science:

• Primate developmental biology
• Comparative anatomy
• Veterinary medicine

Background:

• The common marmoset (Callithrix jacchus) is a valuable model organism in biomedical research.
• Understanding congenital anomalies in non-human primates is crucial for translational studies.
• Limb malformations can impact an organism's function and survival.

Observation:

• A liveborn common marmoset presented with congenital limb malformations.
• The malformations affected both fore and hind limbs.
• Detailed morphological examination was performed.

Findings:

• Ectrodactyly, characterized by a cleft or split foot, was observed in both fore feet and the left hind foot.
• Syndactyly, the fusion of digits, was noted in the right hind foot.
• These specific malformations have not been previously reported in this species.

Implications:

• This case highlights the potential for novel congenital anomalies in common marmosets.
• Such findings contribute to the teratological knowledge base for this primate model.
• Further research may elucidate the genetic or environmental factors contributing to these malformations.