title: Accessory Scrotum With Perineal Lipoma: Pathologic Evaluation Including Androgen Receptor Expression.
abstract: Accessory scrotum is an unusual developmental anomaly defined as additional scrotal tissue in addition to a normally developed scrotum. The accessory scrotum arises posterior to the normally located scrotum and does not contain a testis. We report a case of an 18-month-old boy with an accessory scrotum attached to a perineal lipoma. We resected both and determined histologically that they were of the same tissue as the scrotum, including the presence of androgen receptor expression. To the best of our knowledge, this is the first case to assess androgen receptor expression in an accessory scrotum using immunostaining.
authors.affiliation: Department of Nephro-urology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan.
authors.forename: Keitaro
authors.initials: K
authors.lastname: Iida
authors.affiliation: Department of Nephro-urology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan.
authors.forename: Kentaro
authors.initials: K
authors.lastname: Mizuno
authors.affiliation: Department of Nephro-urology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan.
authors.forename: Hidenori
authors.initials: H
authors.lastname: Nishio
authors.affiliation: Department of Nephro-urology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan.
authors.forename: Yoshinobu
authors.initials: Y
authors.lastname: Moritoki
authors.affiliation: Department of Nephro-urology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan.
authors.forename: Hideyuki
authors.initials: H
authors.lastname: Kamisawa
authors.affiliation: Department of Nephro-urology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan.
authors.forename: Satoshi
authors.initials: S
authors.lastname: Kurokawa
authors.affiliation: Department of Nephro-urology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan.
authors.forename: Kenjiro
authors.initials: K
authors.lastname: Kohri
authors.affiliation: Department of Nephro-urology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan.
authors.forename: Yutaro
authors.initials: Y
authors.lastname: Hayashi
keywords: Accessory scrotum; Androgen receptor; Lipoblastoma; Perineal lipoma