Solitary Fibrous Tumor of the Kidney Developing Local Recurrence
Solitary fibrous tumor (SFT) of the kidney is a rare entity and usually displays a favorable prognosis. We herein report a second case of renal SFT developing local recurrence. A 50-year-old man was referred to our hospital because of a left renal mass. An abdominal CT detected a large renal tumor a...
Saved in:
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2016-01-01
|
| Series: | Case Reports in Urology |
| Online Access: | http://dx.doi.org/10.1155/2016/2426874 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832567679352832000 |
|---|---|
| author | Wataru Usuba Hideo Sasaki Hidekazu Yoshie Kazuki Kitajima Hiroya Kudo Ryuto Nakazawa Yuichi Sato Masayuki Takagi Tatsuya Chikaraishi |
| author_facet | Wataru Usuba Hideo Sasaki Hidekazu Yoshie Kazuki Kitajima Hiroya Kudo Ryuto Nakazawa Yuichi Sato Masayuki Takagi Tatsuya Chikaraishi |
| author_sort | Wataru Usuba |
| collection | DOAJ |
| description | Solitary fibrous tumor (SFT) of the kidney is a rare entity and usually displays a favorable prognosis. We herein report a second case of renal SFT developing local recurrence. A 50-year-old man was referred to our hospital because of a left renal mass. An abdominal CT detected a large renal tumor and radical nephrectomy was performed with a possible diagnosis of renal cell carcinoma. The resected tumor size was measured at 17 × 11 × 8 cm. Grossly, necrosis was observed in central lesion of the tumor but hemorrhage was not observed. Microscopically, the tumor consisted of spindle-shaped cells with scant cytoplasm accompanied by hyalinized collagenous tissue, which displayed hemangiopericytomatous patterns. The cellularity was normal and nuclear pleomorphism was not observed. Ki-67 labeling index was less than 3%. The pathological diagnosis of SFT was made without obvious malignant findings. Three years after the surgery, a follow-up CT scan detected a mass lesion in the tumor bed. Surgical resection was performed and the resected tumor was compatible with local recurrence of the SFT without obvious malignant findings. Renal SFT should be carefully monitored even in the absence of obvious malignant findings. |
| format | Article |
| id | doaj-art-b6488556f29c40ef8e5ff968c671ad74 |
| institution | Kabale University |
| issn | 2090-696X 2090-6978 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Case Reports in Urology |
| spelling | doaj-art-b6488556f29c40ef8e5ff968c671ad742025-02-03T01:00:52ZengWileyCase Reports in Urology2090-696X2090-69782016-01-01201610.1155/2016/24268742426874Solitary Fibrous Tumor of the Kidney Developing Local RecurrenceWataru Usuba0Hideo Sasaki1Hidekazu Yoshie2Kazuki Kitajima3Hiroya Kudo4Ryuto Nakazawa5Yuichi Sato6Masayuki Takagi7Tatsuya Chikaraishi8Department of Urology, St. Marianna University, 2-16-1 Sugao, Miyamae, Kawasaki 216-8511, JapanDepartment of Urology, St. Marianna University, 2-16-1 Sugao, Miyamae, Kawasaki 216-8511, JapanDepartment of Urology, St. Marianna University, 2-16-1 Sugao, Miyamae, Kawasaki 216-8511, JapanDepartment of Urology, St. Marianna University, 2-16-1 Sugao, Miyamae, Kawasaki 216-8511, JapanDepartment of Urology, St. Marianna University, 2-16-1 Sugao, Miyamae, Kawasaki 216-8511, JapanDepartment of Urology, St. Marianna University, 2-16-1 Sugao, Miyamae, Kawasaki 216-8511, JapanDepartment of Urology, St. Marianna University, 2-16-1 Sugao, Miyamae, Kawasaki 216-8511, JapanDepartment of Pathology, St. Marianna University, 2-16-1 Sugao, Miyamae, Kawasaki 216-8511, JapanDepartment of Urology, St. Marianna University, 2-16-1 Sugao, Miyamae, Kawasaki 216-8511, JapanSolitary fibrous tumor (SFT) of the kidney is a rare entity and usually displays a favorable prognosis. We herein report a second case of renal SFT developing local recurrence. A 50-year-old man was referred to our hospital because of a left renal mass. An abdominal CT detected a large renal tumor and radical nephrectomy was performed with a possible diagnosis of renal cell carcinoma. The resected tumor size was measured at 17 × 11 × 8 cm. Grossly, necrosis was observed in central lesion of the tumor but hemorrhage was not observed. Microscopically, the tumor consisted of spindle-shaped cells with scant cytoplasm accompanied by hyalinized collagenous tissue, which displayed hemangiopericytomatous patterns. The cellularity was normal and nuclear pleomorphism was not observed. Ki-67 labeling index was less than 3%. The pathological diagnosis of SFT was made without obvious malignant findings. Three years after the surgery, a follow-up CT scan detected a mass lesion in the tumor bed. Surgical resection was performed and the resected tumor was compatible with local recurrence of the SFT without obvious malignant findings. Renal SFT should be carefully monitored even in the absence of obvious malignant findings.http://dx.doi.org/10.1155/2016/2426874 |
| spellingShingle | Wataru Usuba Hideo Sasaki Hidekazu Yoshie Kazuki Kitajima Hiroya Kudo Ryuto Nakazawa Yuichi Sato Masayuki Takagi Tatsuya Chikaraishi Solitary Fibrous Tumor of the Kidney Developing Local Recurrence Case Reports in Urology |
| title | Solitary Fibrous Tumor of the Kidney Developing Local Recurrence |
| title_full | Solitary Fibrous Tumor of the Kidney Developing Local Recurrence |
| title_fullStr | Solitary Fibrous Tumor of the Kidney Developing Local Recurrence |
| title_full_unstemmed | Solitary Fibrous Tumor of the Kidney Developing Local Recurrence |
| title_short | Solitary Fibrous Tumor of the Kidney Developing Local Recurrence |
| title_sort | solitary fibrous tumor of the kidney developing local recurrence |
| url | http://dx.doi.org/10.1155/2016/2426874 |
| work_keys_str_mv | AT wataruusuba solitaryfibroustumorofthekidneydevelopinglocalrecurrence AT hideosasaki solitaryfibroustumorofthekidneydevelopinglocalrecurrence AT hidekazuyoshie solitaryfibroustumorofthekidneydevelopinglocalrecurrence AT kazukikitajima solitaryfibroustumorofthekidneydevelopinglocalrecurrence AT hiroyakudo solitaryfibroustumorofthekidneydevelopinglocalrecurrence AT ryutonakazawa solitaryfibroustumorofthekidneydevelopinglocalrecurrence AT yuichisato solitaryfibroustumorofthekidneydevelopinglocalrecurrence AT masayukitakagi solitaryfibroustumorofthekidneydevelopinglocalrecurrence AT tatsuyachikaraishi solitaryfibroustumorofthekidneydevelopinglocalrecurrence |