title: A case of fibrous pseudotumor originating from tunica vaginalis testis.
abstract: A 32-year-old man presented with a complaint of painless palpable mass of the left scrotal content. Based on the preoperative diagnosis of scrotal or spermatic cordal benign tumor, local excision was performed. The histological diagnosis was scrotal fibrous pseudotumor. In Japan, only 35 cases of fibrous pseudotumor of the scrotum have been reported including our case. Orchiectomy was performed in 15 cases. Fibrous pseudotumor is a benign fibroproliferative lesion with dense hyalinization and sometimes focal calcification. It may be induced by previous intrascrotal inflammatory events such as epididymitis, an infected hydrocele, prior surgery or trauma. Although a relatively rare disease, a fibrous pseudotumor should be considered in the differential diagnosis of testicular and testicular tunica tumors. Our case was of a benign pseudotumor and orchiectomy could have been avoided.
authors.affiliation: The Department of Urology, Tokyo Kosei Nenkin Hospital.
authors.forename: Tomonori
authors.initials: T
authors.lastname: Kato
authors.forename: Makoto
authors.initials: M
authors.lastname: Takano
authors.forename: Ken-ichi
authors.initials: K
authors.lastname: Mizoguchi
authors.forename: Ryoichi
authors.initials: R
authors.lastname: Ikeda
authors.forename: Takeshi
authors.initials: T
authors.lastname: Nakamura
authors.forename: Koichiro
authors.initials: K
authors.lastname: Akakura
authors.forename: Takashi
authors.initials: T
authors.lastname: Hikage
authors.forename: Tohru
authors.initials: T
authors.lastname: Inoue
mesh_terms: D000328:Adult; D005832:Genital Diseases, Male / Q000473:pathology*; D006801:Humans; D008297:Male; D012611:Scrotum; D013733:Testicular Diseases / Q000473:pathology