Solitary Fibrous Tumor of the Urinary Bladder: A Case Report.
- Author:
Jong Sil LEE
1
;
Jeong Seok HWA
;
Gyung Hyuck KO
;
Jeong Hee LEE
;
Hwal Woong KIM
Author Information
1. Department of Pathology, Gyeongsang National University, College of Medicine, Jinju, Korea. hawk7023@chollian.net
- Publication Type:Case Report
- Keywords:
Solitary Fibrous Tumor;
Urinary Bladder;
CD34
- MeSH:
Aged;
Collagen;
Coloring Agents;
Dysuria;
Gelatin;
Hematuria;
Humans;
Necrosis;
Pleura;
Solitary Fibrous Tumors*;
Ultrasonography;
Urinary Bladder*
- From:Korean Journal of Pathology
2004;38(2):129-131
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Solitary fibrous tumor (SFT) most commonly affects the pleura and these tumors have been recently reported to be found in unusual locations. We describe here a solitary fibrous tumor of the urinary bladder that was removed from a 79-year-old man having a history of gross hematuria and dysuria. Transabdominal ultrasonography showed a huge soft tissue mass in the urinary bladder. The cut surface of the tumor showed a grayish-white, hemorrhagic and gelatinous appearance. Necrosis was not found. Microscopically, the tumor showed a proliferation of spindle or ovoid cells that were intervened by a collagenous stroma. A variety of growth patterns was identified but the so-called patternless pattern was the predominant one. The spindle cells had almost no mitotic figures, and there was very little or no nuclear atypia. Immunohistochemical stains showed a strong reactivity for CD34 and a focal reactivity for bcl-2. The ultrastructure of the tumor cells showed mesenchymal-myofibroblastic traits.
