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  • Title: Is postchemotherapy retroperitoneal surgery necessary in patients with nonseminomatous testicular cancer and minimal residual tumor masses?
    Author: Fosså SD, Qvist H, Stenwig AE, Lien HH, Ous S, Giercksky KE.
    Journal: J Clin Oncol; 1992 Apr; 10(4):569-73. PubMed ID: 1312586.
    Abstract:
    PURPOSE: At least one third of the patients with metastatic testicular cancer are rendered tumor-free by cisplatin-based chemotherapy. One may question, therefore, the routine use of postchemotherapy retroperitoneal lymph node dissection (RLND), especially if the residual masses are less than 20 mm in diameter. To define the role of such surgery, we analyzed the postchemotherapy histology in testicular cancer patients with minimal residual disease. PATIENTS AND METHODS: Seventy-eight patients with advanced nonseminomatous testicular cancer underwent RLND after three to four cycles of cisplatin- or carboplatin-based chemotherapy. In all patients, the largest diameter of the residual retroperitoneal mass was less than 20 mm. RESULTS: Complete fibrosis/necrosis was found in 51 patients, mature teratoma in 22, and vital malignant germ cell tumor in five. In two of the latter five patients, alphafetoprotein (AFP) had increased immediately before RLND. In the 76 patients with normal pre-RLND tumor markers, the presence of undifferentiated malignant teratoma (MTU) in the primary tumor and normal prechemotherapy tumor markers were independent parameters predicting complete fibrosis/necrosis, which was demonstrated in all 15 patients with these two pretreatment parameters. CONCLUSIONS: Postchemotherapy RLND can be omitted in patients with MTU in the primary tumor who have normal AFP/human chorionic gonadotropin (AFP/HCG) before chemotherapy and whose residual retroperitoneal mass is less than 20 mm in diameter. If the pre-RLND tumor markers are normal, RLND should be performed in all other patients with small residual masses, even in the presence of a normal computed tomography (CT) and particularly if regular follow-up of the patients is not guaranteed.
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