Background: The combination of conservative surgery plus radiotherapy for vulvar cancer has been well established as a therapeutic alternative to extensive radical surgery. This study was undertaken to evaluate the long-term results of radiotherapy with or without surgery in the management of advanced vulvar cancer.
Patients and methods: The cases of 76 patients who had advanced carcinoma of the vulva treated with different modalities at the University of Texas M.D. Anderson Cancer Center were retrospectively reviewed. Three patients had unstaged disease as a result of previous surgery, 19 had stage II, 40 had stage III, and 14 had stage IV disease. Follow-up ranged from 4 to 17 years (median, 11 years).
Results: Five-year disease-free survivals were 75, 67, 68 and 52% for treatment groups I, II, III, and IV, respectively. Disease was controlled locally in 83, 80, 73 and 56% of patients in groups I through IV, respectively; the overall rate of local control was 79%. There was no significant difference in primary tumor control, 5-year disease-free survival, or overall survival among the different treatment groups (p=0.1300). However, these rates did differ significantly (p<0.006) based on FIGO stage of disease.
Conclusion: In this report, the cure of vulvar cancers with radiotherapy alone (5-year disease-free survival 52% and local control 56%), the radiotherapeutic salvage of patients with surgical failure and/or large tumors, the improved survival with low morbidity by pre- and postoperative radiotherapy were provocative observations suggesting the value of this therapy for advanced vulvar cancer.