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Related Experiment Videos

Human tails and pseudotails.

A H Dao, M G Netsky

    Human Pathology
    |May 1, 1984
    PubMed
    Summary
    This summary is machine-generated.

    This study reports a case of a human tail in an infant, reviewing 33 cases of true tails and pseudotails. True tails are benign, surgically removable vestigial remnants, distinct from varied pseudotail lesions.

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    Area of Science:

    • Human embryology
    • Developmental abnormalities
    • Pediatric surgery

    Background:

    • Human tails are rare congenital anomalies, often presenting as lumbosacral protrusions.
    • Distinguishing true tails from pseudotails is crucial for appropriate management.
    • Understanding the embryological origins aids in classifying these lesions.

    Observation:

    • A case of a true tail in a 2-week-old infant is presented.
    • Review of 33 cases reveals true tails contain adipose tissue, muscle, nerves, and skin, lacking bone or spinal cord.
    • True tails are mobile, can measure up to 13 cm, and occur more frequently in males.

    Findings:

    • True tails result from the retention of embryonic tail remnants.
    • Pseudotails encompass diverse lesions, with vertebral anomalies being the most common cause.

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  • Other pseudotail causes include lipomas, teratomas, gliomas, and parasitic fetuses.

    • Implications:

    • Surgical excision of true tails is typically curative with no residual effects.
    • Accurate diagnosis of pseudotails is essential due to varied underlying pathologies.
    • Further research can refine diagnostic criteria and treatment strategies for these rare conditions.