副睾丸Adenomatoid tumorの2例

概要

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This is a report of two cases of adenomatoid tumor on the epididymis. Both patients presented with the chief complaint of an intrascrotal mass. One patient, 56 years old, had a tumor on the left epididymis and underwent left epididymectomy. The other patient, 65 years old, had a tumor on the right epididymis and underwent resection of the tumor. Subsequently histological diagnosis confirmed an adenomatoid tumor. From the Japanese literature, 103 cases of adenomatoid tumor including the present cases were reviewed. The tumor was located on the epididymis in 83 cases with a mean age of 39.6 years and on the testicular tunica in 11 cases with a mean age of 27.5 years. These tumors originated from two sites, from the serosal lining of the genital tract and from the Mullerian remnant. The former type is called by Yasuma the Mesotherial type and the latter, the adenomatoid type. The present two cases are of the adenomatoid type, which is usually found on the tail of the epididymis in men from 30 to 50 years of age.