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  • Title: Significance of primary tumor size and preorchiectomy serum tumor marker level in predicting pathologic stage at retroperitoneal lymph node dissection in clinical Stage A nonseminomatous germ cell tumors.
    Author: Beck SD, Foster RS, Bihrle R, Donohue JP.
    Journal: Urology; 2007 Mar; 69(3):557-9. PubMed ID: 17382165.
    Abstract:
    OBJECTIVES: To determine whether the size of the primary tumor and degree of preorchiectomy serum alpha-fetoprotein (AFP) and beta-human chorionic gonadotropin (beta-hCG) elevation predict for retroperitoneal pathologic findings in patients with clinical Stage A nonseminomatous germ cell tumor undergoing primary retroperitoneal lymph node dissection. METHODS: The testicular cancer database was queried to identify patients with clinical Stage A nonseminomatous germ cell tumor with normalization of serum tumor markers after orchiectomy who had undergone retroperitoneal lymph node dissection. A total of 779 patients were identified. The preorchiectomy serum tumor marker level was recorded and categorized into the following subsets: AFP: less than 20 (normal), 20 to 100, 100 to 1000, and more than 1000 ng/dL; and beta-hCG: less than 5.0 (normal), 5 to 100, 100 to 1000, and more than 1000. The association between AFP, beta-hCG, and primary tumor size and retroperitoneal pathologic findings was determined. RESULTS: The retroperitoneal pathologic examination revealed metastatic disease in 207 patients (26.6%). The preorchiectomy serum beta-hCG level, as a categorical variable, was not predictive of positive retroperitoneal pathologic findings (P = 0.187). The preorchiectomy serum AFP did predict for positive retroperitoneal pathologic findings, with lower serum AFP levels associated with a greater incidence of retroperitoneal metastasis (P <0.001). The primary tumor size was not predictive of positive retroperitoneal pathologic findings (P = 0.113). CONCLUSIONS: Neither the primary tumor size nor the preorchiectomy beta-hCG level was predictive of retroperitoneal metastases. However, a normal preorchiectomy AFP level was associated with a greater incidence of retroperitoneal metastases.
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