We report on a case of malacoplakia involving testis and epididymis in 63-year-old man. The lesion had a characteristic yellow nodular gross appearance and was composed of histiocytes, neutrophils and plasma cells. Calcospherules (Michaelis-Gutmann bodies) are prominent. The findings are compatible with the generally accepted concept that malacoplakia represents a peculiar inflammatory process of unknown etiology. The relationship between testicular malacoplakia and granulomatous orchitis is discussed.

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