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Related Experiment Videos

Spitz nevi.

E M Casso1, C M Grin-Jorgensen, J M Grant-Kels

  • 1Division of Dermatology, University of Connecticut, Farmington 06030.

Journal of the American Academy of Dermatology
|December 1, 1992
PubMed
Summary
This summary is machine-generated.

Distinguishing Spitz nevi from malignant melanoma is challenging due to histologic similarities. Complete excision of Spitz nevi is recommended due to diagnostic uncertainties and potential overlap with melanoma.

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Area of Science:

  • Dermatology
  • Oncology
  • Pathology

Background:

  • Spitz nevi are benign melanocytic lesions that histologically resemble malignant melanoma.
  • Diagnostic criteria exist, but differentiation remains challenging, leading to therapeutic controversies.
  • The natural history and biologic behavior of Spitz nevi are not fully understood.

Purpose of the Study:

  • To review the epidemiology, clinical features, and histopathology of Spitz nevi.
  • To discuss the role of molecular and immunohistochemical studies in diagnosis.
  • To primarily focus on the natural course, prognosis, and treatment of Spitz nevi.

Main Methods:

  • Review of 716 cases of Spitz nevi from 13 published papers (1948-1990).
  • Analysis of available data on Spitz nevi and malignant melanoma.

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  • Consideration of recent molecular and immunohistochemical diagnostic studies.

    • Main Results:

    • Spitz nevi and malignant melanoma share significant histologic similarities.
    • Current data suggest these entities may exist on a disease continuum.
    • Difficulties in differentiating Spitz nevi from melanoma persist.

    Conclusions:

    • Spitz nevi and malignant melanoma may not be easily categorized as distinct entities.
    • Complete excision of all Spitz nevi is recommended due to diagnostic uncertainty.
    • Reexcision of positive margins is advised following initial complete excision.