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SURGICAL-PATHOLOGICAL VARIABLES PREDICTIVE OF LOCAL RECURRENCE IN SQUAMOUS-CELL CARCINOMA OF THE VULVA
SURGICAL-PATHOLOGICAL VARIABLES PREDICTIVE OF LOCAL RECURRENCE IN SQUAMOUS-CELL CARCINOMA OF THE VULVA 1990 ANNUAL MEETING OF THE SOC OF GYNECOLOGIC ONCOLOGISTS HEAPS, J. M., Fu, Y. S., Montz, F. J., Hacker, N. F., Berek, J. S. ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS. 1990: 309–14Abstract
One hundred and thirty-five patients with squamous carcinoma of the vulva were treated at UCLA and City of Hope Medical Centers between 1957 and 1985. Sixty-two cases were stage I, 48 stage II, 18 stage III, and 7 stage IV. Twenty-one patients developed a local vulvar recurrence after primary radical resection. Ninety-one patients had a surgical tumor-free margin greater than or equal to 8 mm on tissue section and none had a local vulvar recurrence. Forty-four patients had a margin less than 8 mm; 21 had a local recurrence and 23 did not (P less than 0.0001). Of the 23 patients with a margin less than 8 mm who did not recur locally, 14 remained free of disease, and 9 had either advanced disease, declining health, or short follow-up. Depth of invasion is associated with local recurrence, with a 9.1-mm reference value correctly predicting outcome in 81.5% of cases. Increasing tumor thickness is associated with local recurrence, with a 10-mm reference value predictive of 90% non-recurrence and 33% recurrences. A pushing border pattern is less likely to recur than an infiltrative growth pattern. Lymph-vascular space invasion has a combined predictive accuracy of 81.5%. Increasing keratin and greater than 10 mitoses per 10 high-power fields correlate with local recurrence. Neither clinical tumor size nor coexisting benign vulvar pathology correlates with local recurrence. Fourteen of twenty-one patients with vulvar recurrence died of metastatic disease, four died of intercurrent disease, and three were alive at 32, 68, and 157 months, with 16 recurring in less than 1 year. Surgical margin is the most powerful predictor of local vulvar recurrence. Combining factors in a stepwise logistical regression does not significantly improve this predictive value. Accounting for specimen preparation and fixation, a 1-cm tumor-free surgical margin on the vulva results in a high rate of local control, whereas a margin less than 8 mm is associated with a 50% chance of recurrence.
View details for Web of Science ID A1990EE33000003
View details for PubMedID 2227541