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Related Experiment Videos

Morphology of a two-headed piglet

G D Partlow, D E Barrales, K R Fisher

    The Anatomical Record
    |March 1, 1981
    PubMed
    Summary

    A rare diprosopus piglet with two heads was born with duplicated facial structures and partially duplicated vertebrae. This case offers insights into complex congenital anomalies and developmental processes in mammals.

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    Area of Science:

    • Veterinary Pathology
    • Developmental Biology
    • Congenital Anomalies

    Background:

    • Diprosopus, a rare congenital condition, results in facial duplication.
    • Understanding the developmental mechanisms of such anomalies is crucial for veterinary science.

    Observation:

    • A live-born piglet presented with diprosopus, featuring two heads joined occipitally.
    • The piglet exhibited duplicated facial features including snouts, eyes, and ears, alongside partially duplicated vertebrae and fused brains.

    Findings:

    • The vertebral column was single, but vertebral bodies were doubled from the axis to T8.
    • Cranial nerves were duplicated except for IX, X, and XI, with brains fused at the ponto-medullary junction.
    • Anomalous midline neural tissue extended from the brain fusion point to T8.

    Implications:

    • This case highlights the complex interplay of genetic and environmental factors in mammalian development.
    • Further research into diprosopus can improve our understanding of neural tube and craniofacial development.
    • Such anomalies provide valuable data for comparative pathology and developmental studies.

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