The Journal of urology
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Bilateral nephrectomy was performed in 4 patients with bilateral Wilms tumor. The current philosophy regarding the need to preserve maximum renal parenchyma is discussed. New guidelines suggested by the National Wilms Tumor Study group discourage unilateral nephrectomy and partial nephrectomy at initial exploration for bilateral Wilms tumor. Alternatively, it is recommended that continued treatment with chemotherapy and/or radiation therapy followed by second and third-look operations to maximize preservation of renal parenchyma be done with bilateral nephrectomy as a last resort option.
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Vasitis nodosa is an infrequently recognized, benign disorder that may be confused with malignancy of the vas deferens. A review of 30 patients with vasal masses removed during vasovasostomy revealed 20 men with vasitis nodosa. ⋯ Of the 20 patients with vasitis nodosa 14 had associated granulomatous inflammation. Vasitis nodosa is notably more common than has been reported previously and has been associated with spontaneous recanalization of the vas deferens following vasectomy.