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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 patients 15 had vasal masses on physical examination, 1 of which was painful. 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.

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