Extragastrointestinal stromal tumor of prostate

Theodor Bilharz Research Institute

Bibliographic Information

Authors: Almagharbi S.A.; Fayoumi Y.A.; Abdel-Meguid T.A.; Abdelsalam A.; Bokhary R.Y.; Azhar R.A.

Journal: Urology Annals

Publisher: Wolters Kluwer Medknow Publications

Publication Date: 2018

Volume / Issue: Volume 10 / Issue 4

Pages: 416–419

ISSN: 9747796

DOI: 10.4103/UA.UA_26_18

Scopus: View on Scopus

Document Type: Article

Access: All Open Access; Gold Open Access; Green Open Access


Authors and Affiliations

Almagharbi S.A., Faculty of Medicine, King Abdulaziz University, Saudi Arabia; Fayoumi Y.A., Faculty of Medicine, King Abdulaziz University, Saudi Arabia; Abdel-Meguid T.A., Departments of Urology, Faculty of Medicine, King Abdulaziz University, P. O. Box: 80215, Jeddah, 21589, Saudi Arabia, Department of Urology, Faculty of Medicine, Minia University, Minya, Egypt; Abdelsalam A., Departments of Urology, Faculty of Medicine, King Abdulaziz University, P. O. Box: 80215, Jeddah, 21589, Saudi Arabia, Theodor Bilharz Research Institute, Cairo, Egypt; Bokhary R.Y., Departments of Pathology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia; Azhar R.A., Departments of Urology, Faculty of Medicine, King Abdulaziz University, P. O. Box: 80215, Jeddah, 21589, Saudi Arabia, USC Institute of Urology, Keck School of Medicine, University of Southern California, Los Angeles, United States


Abstract

Gastrointestinal stromal tumors (GISTs) that originate outside the GI tract are extremely uncommon. In this case report, we describe a GIST of primary origin in the prostate gland of an 84-year-old male who presented with severe urinary retention at King Abdulaziz University Hospital in Saudi Arabia. Diagnosis was based on patient history, radiological studies, pathologic findings, and immunohistochemical data. Digital rectal examination revealed a hugely enlarged prostate encroaching upon the rectal lumen with a smooth and firm surface. Transrectal ultrasound showed a markedly enlarged prostate with an estimated volume of 360 ml; prostate-specific antigen was 5.4 ng/ml. Immediate preoperative cystoscopy demonstrated only a moderate enlargement of the prostate, which was disproportionate to its actual size. Postoperative abdominal computed tomography showed residual prostatic tissue with an estimated weight of 78 g, multiple diffuse colonic diverticulosis, and scattered subcentimeter mesenteric lymph nodes. Histopathological examination of the prostatic tissue showed cellular spindle cell neoplastic proliferation which was diffusely positive for CD117 (c-kit), DOG1, and CD34. GISTs must be considered in the differential diagnosis of spindle cell tumors detected in the prostate. © 2018 Medknow Publications. All right reserved.


Keywords

Extragastrointestinal stromal tumor; prostate; transurethral resection of prostate


Citation Information

Scopus Citations: 7


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