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Hinyokika Kiyo. 2007 Feb;53(2):137-9.

[A case of papillary cystadenoma of the epididymis].

[Article in Japanese]

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The Department of Urology, Chuno Kousei Hospital.


A 74-year-old man who consulted our hospital complaining of painless left scrotal swelling. Computed tomographic demonstrated a left epididymal tumor in the hydrocele. We performed left high orchiectomy. Microscopically, several microcysts were found and tumor cells showing a papillary growth pattern were found in these microcysts. We finally diagnosed the patient as having papillary cystadenoma of the epididymis. Papillary cystadenoma of the epididymis is rare epididymal benign tumor. To our knowledge, 19 cases have been reported in Japan between 1976 and 2000. It is clinically important to determine whether or not the tumor is associated with von Hippel-Lindau disease. In our case, there was no evidence of von Hippel-Lindau disease and the patient has remained well with no complication to date.

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