title: An extragastrointestinal stromal tumor originating from the seminal vesicles: A case report and review of the literature.
abstract: The present study reports a case of an extragastrointestinal stromal tumor (EGIST) originating from the seminal vesicles. A 74-year-old male patient with a tumor in the seminal vesicles underwent a radical spermatocystectomy due to an increased defecation frequency and a huge mass in the seminal vesicles. Ultrasonography and computed tomography (CT) initially diagnosed the mass as a tumor originating from the prostate. However, the mass was ultimately confirmed as an EGIST from the seminal vesicles following a laparotomy. According to the size, mitotic activity, cellularity, necrotic situation and immunohistochemical data, the tumor belonged to a low-risk group. No recurrence or metastasis has been identified during six years of follow-up observations. To the best of our knowledge, this is the first study to report this particular pathological type of EGIST.
authors.affiliation: Department of Urology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, P.R. China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Hou
authors.forename: Yinhuai
authors.initials: Y
authors.lastname: Wang
authors.forename: Ran
authors.initials: R
authors.lastname: Xu
authors.forename: Duo
authors.initials: D
authors.lastname: Li
authors.forename: Xiaokun
authors.initials: X
authors.lastname: Zhao
keywords: extragastrointestinal stromal tumor; pathology; seminal vesicles