Solitary fibrous tumor of the kidney: A case report

Zaghbib, Selim; Chakroun, Marouene; Essid, Mohamed Ali; Saadi, Ahmed; Bouzouita, A.; Derouiche, A.; Slama, Mohamed Riadh Ben; Ayed, H.; Chébil, Mohamed

doi:10.1016/j.ijscr.2019.08.004

Cited by 5 publications

(6 citation statements)

References 7 publications

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“…Interestingly, the lesion we described was isointense to the kidney in T1 weighted image and had heterogenous intensity in T2 weighted image. This uncommon finding was also described by Zaghbib et al (2). Currently, renal biopsy is indicated before ablative therapy and systemic therapy without previous pathology and in select patients who are considering active surveillance.…”

Section: Discussionsupporting

confidence: 61%

“…Solitary fibrous tumor (SFT) represent rare tumors of mesenchymal origin and account for < 2% of all soft tissue tumors (1,2). The etiology of SFT remains unknown (1).…”

Section: Introductionmentioning

confidence: 99%

“…Clinically, these tumors remain asymptomatic for long time. Moreover, radiologic features are not specific and renal SFT are usually diagnosed as renal cell carcinoma (RCC) and managed as such (2). Currently, there are no clear evidence-based guidelines for the diagnostic and therapeutic management of these tumors, and radical nephrectomy is the treatment of choice perferred by most authors.…”

Section: Introductionmentioning

confidence: 99%

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A case of incidentally discovered solitary fibrous tumor of the kidney: A case study

et al. 2020

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Solitary fibrous tumor (SFT) is a rare neoplasm of mesenchymal origin. The kidney represents an unusual location for SFT and the diagnosis and treatment of renal SFT remains challenging. The present study reports the case of a right kidney SFT incidentally discovered in a 52-year old woman. Radiological findings from computed tomography and magnetic resonance imaging were not specific but highly suspect for a malignant neoplasm. The definitive diagnosis relied on histological examination and immunohistochemical staining for CD34 and signal transducer and activator of transcription 6.

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Section: Discussionsupporting

confidence: 61%

“…Solitary fibrous tumor (SFT) represent rare tumors of mesenchymal origin and account for < 2% of all soft tissue tumors (1,2). The etiology of SFT remains unknown (1).…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A case of incidentally discovered solitary fibrous tumor of the kidney: A case study

et al. 2020

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“…SFTs mainly occur in the pleura. However, SFTs have also been reported at extrapulmonary sites, such as the liver, mediastinum, breast, lung, meninges, and urogenital organs[ 7 ]. According to previous reports, 15% of SFTs originating in the kidneys are located in the renal capsule, 6% are located around the pelvis, 3% are located in the renal pelvis, and 76% do not have a clear site of origin[ 8 ].…”

Section: Discussionmentioning

confidence: 99%

Solitary fibrous tumor of the renal pelvis: A case report

Liu¹,

Zheng²,

Wang³

et al. 2022

WJCC

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BACKGROUND Solitary fibrous tumor (SFT) is a rare mesenchymal neoplasm. SFT derived from the renal pelvis is an exceedingly rare entity. In this study, we report a case of renal pelvis SFT and review the relevant literature on this rare tumor. CASE SUMMARY A 76-year-old man was hospitalized due to right lumbar and abdominal pain. Abdominal computed tomography showed a hypervascular space-occupying renal lesion, sized 2.3 cm × 1.8 cm. Based on the computed tomography findings, the patient was diagnosed with right renal pelvis tumor and underwent nephrectomy. Postoperative immunohistochemical results confirmed the diagnosis. As of the 3-year follow-up, there were no signs of recurrence, and the patient has recovered well. CONCLUSION We report a rare case of SFT derived from the renal pelvis and discuss the imaging and histopathological features that distinguish renal pelvis SFT from other renal pelvis tumors.

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“…As SFTs may originate from dendritic cells with positive CD34 expression, CD34 positivity is typically used to diagnose SFT [22]. Additionally, CD99 and BCL2 positivity may also be used [23][24][25][26] for diagnoses, and other markers, such as SMA, EMA, S-100, and CK, may also be positive at times [24,[26][27][28]. Moreover, Ki67 is a marker of tumor proliferation expansion and malignant SFTs may express Ki67 > 5% [2,29].…”

Section: Discussionmentioning

confidence: 99%

Urinary and Pelvic Solitary Fibrous Tumors: A Study on 22 Patients

Shen

Jiang

Chen

et al. 2022

Preprint

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Background: Solitary fibrous tumors (SFT), most commonly found in the pleura, have a low incidence in the urinary and pelvic organs. This study aimed to discuss the diagnosis, treatment, and prognosis of urinary and pelvic SFT(UPSFT) as well as differences between benign and malignant UPSFTs. We aimed to gain a better understanding of this disease in the urinary and pelvic systems. Methods: Twenty-two patients with UPSFTs treated in our hospital between January 2004 and August 2021 were enrolled. General characteristics, clinical symptoms, imaging results, treatments, pathologies, and follow-up results were reviewed and analyzed. Results: Of the 22 patients, six (27.3%) showed non-specific clinical symptoms, including dysfunction of defecation, lower extremity weakness, urodynia, dysuria, frequent urination accompanied by changes in stool habits, low back pain, and abdominal wall mass with abdominal pain. Sixteen (72.7%) patients were asymptomatic. The median SFT diameter was 5.65 cm (range: 1.7–15 cm). All tumors were found to be space-occupying lesions on Doppler ultrasound, computed tomography, or magnetic resonance imaging. All patients were surgically treated, including nine, six, five, and two cases of robotic, open, laparoscopic, and transurethral resection of bladder tumor surgery, respectively. Pathology results revealed that frequent nuclear divisions, morphological variations, necrosis, and high expressions of Ki-67 were higher in malignant SFT compared with benign SFT. All patients were initially followed up 3 months post-surgery and every 6 months thereafter. Disease-free survival (DFS) in malignant SFT ranged from 5–63 months, with a median DFS of 37.0 months. Additionally, DFS was significantly longer in benign cases than that in malignant cases. Conclusions: UPSFTs do not typically present with specific clinical symptoms. Imaging exams were important in diagnosing UPSFT, with final diagnoses depending on histopathology results. In addition, surgical resection was the most common treatment with subsequent excellent prognoses, except in the case of malignancy.

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Solitary fibrous tumor of the kidney: A case report

Cited by 5 publications

References 7 publications

A case of incidentally discovered solitary fibrous tumor of the kidney: A case study

A case of incidentally discovered solitary fibrous tumor of the kidney: A case study

Solitary fibrous tumor of the renal pelvis: A case report

Urinary and Pelvic Solitary Fibrous Tumors: A Study on 22 Patients

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