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Ki-67 as a Prognostic Marker in Squamous Cell Carcinomas of the Vulva: A Systematic Review

  • 0Department of Obstetrics and Gynecology, University Medical Center of the Johannes Gutenberg University Mainz, 55131 Mainz, Germany.
Journal of Clinical Medicine +

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March 27, 2025

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March 27, 2025

View abstract on PubMed

Summary

This summary is machine-generated.

Ki-67 staining shows a potential association with overall survival in vulvar squamous cell carcinoma, but not with lymph node involvement. Further research is needed to clarify its prognostic value.

Area Of Science

  • Oncology
  • Pathology
  • Gynecologic Oncology

Background

  • Vulvar squamous cell carcinoma (VSCC) prognosis is crucial for treatment planning.
  • Immunohistochemical markers like Ki-67 are investigated for their prognostic impact.
  • The role of Ki-67 in VSCC, particularly concerning lymph node status and survival, requires clarification.

Purpose Of The Study

  • To systematically review and evaluate the prognostic significance of Ki-67 staining in VSCC.
  • To assess the association between Ki-67 expression and lymph node involvement.
  • To determine the impact of Ki-67 on overall survival and progression-free survival in VSCC patients.

Main Methods

  • A systematic literature search was performed across major databases (PubMed, Embase, Scopus, Web of Science) from 1980 to December 2023.
  • Studies investigating Ki-67 (or MIB-1) in VSCC, with a focus on lymph node metastasis and survival outcomes, were included.
  • Study quality was assessed, and results were synthesized through a narrative summary.

Main Results

  • Thirteen studies were included in the review.
  • Nine out of ten studies found no significant association between Ki-67 and lymph node metastasis.
  • Five out of nine studies indicated a link between Ki-67 status and overall survival, particularly with pattern-based interpretation.

Conclusions

  • The prognostic value of Ki-67 staining for survival in VSCC is currently reported ambiguously.
  • Convincing evidence linking Ki-67 expression to lymph node involvement in VSCC is lacking.
  • Future studies are warranted to definitively establish the prognostic role of Ki-67 in vulvar cancer.

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