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Related Experiment Videos

Squamous carcinoma arising in a pilonidal sinus.

W C Lineaweaver, M B Brunson, J F Smith

    Journal of Surgical Oncology
    |December 1, 1984
    PubMed
    Summary
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    Squamous cell carcinoma from pilonidal sinus is aggressive. Wide local excision shows promise but requires longer follow-up to confirm efficacy for this rare cancer.

    Area of Science:

    • Oncology
    • Surgical Pathology

    Background:

    • Squamous cell carcinoma (SCC) arising in a pilonidal sinus is a rare malignancy.
    • Pilonidal sinuses are typically benign conditions, making malignant transformation uncommon.

    Observation:

    • A case of SCC in an extensive pilonidal sinus treated successfully with wide local excision over a 1-year follow-up is presented.
    • Literature review identified 32 prior cases, with 44% experiencing recurrence or metastasis and 22% mortality.

    Findings:

    • In the largest historical cohort (19 patients with localized disease) treated with wide excision, 42% recurred or metastasized.
    • Despite initial high cure rates (89.5%), long-term follow-up (≥5 years) was limited in historical cases.

    Implications:

    Related Experiment Videos

  • Pilonidal tract SCC appears to be an aggressive tumor.
  • The efficacy of wide local excision alone requires further validation through extended follow-up.
  • Adjuvant therapy may be necessary for optimal management of this rare cancer.