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Related Experiment Videos

[Radiotherapy for vulvar cancer]

S Hirota1, T Soejima, T Motohara

  • 1Department of Radiology, Hyogo Medical Center for Adults.

Nihon Igaku Hoshasen Gakkai Zasshi. Nippon Acta Radiologica
|March 25, 1993
PubMed
Summary

Radiotherapy for vulvar cancer achieved a 43.6% 5-year survival rate and 60% complete regression. However, advanced stages and inguinal node involvement reduced treatment efficacy, with notable recurrence and necrosis rates.

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Area of Science:

  • Gynecology
  • Radiation Oncology
  • Oncology

Context:

  • Retrospective analysis of 15 patients with primary vulvar cancer treated between 1971-1990.
  • Initial treatment involved radiotherapy at Hyogo Medical Center for Adults and Hyogo Cancer Center.
  • Patient stages ranged from 0 to III, with a majority in stage III.

Purpose:

  • To evaluate the efficacy and outcomes of radiotherapy as an initial treatment for primary vulvar cancer.
  • To assess survival rates, complete regression, and patterns of failure in patients treated with various radiotherapy techniques.

Summary:

  • Nine patients received electron irradiation (with or without interstitial/intracavitary vaginal irradiation).
  • Five patients received megavoltage X-ray irradiation followed by boost irradiation.

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  • Total doses ranged from 50-100 Gy (average 73 Gy). Actuarial 5-year survival was 43.6%.
  • Complete regression (CR) was achieved in 60% of patients, particularly those with tumors <2 cm.
  • CR was not achieved in patients with palpable inguinal nodes. Relapse occurred in 5/9 CR cases, with primary sites of failure including vagina, groin, and vulvar region.
  • Necrosis occurred in 5/9 CR cases.

    • Impact:

    • Highlights the potential of radiotherapy in managing vulvar cancer, with significant complete regression rates.
    • Identifies prognostic factors such as tumor size and inguinal lymph node status affecting treatment outcomes.
    • Underscores the need for careful monitoring due to late recurrences and radiation-induced necrosis.