Renal liposarcoma of the sinus renalis

Yaman, Önder; Soygür, Tarkan; Özer, Gökhan; Arıkan, Nihat; Yaman, L. Sezai

doi:10.1007/bf02550953

Cited by 5 publications

(7 citation statements)

References 4 publications

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“…Primary retroperitoneal liposarcomas (LPSs), the most common retroperitoneal sarcomas, may arise in peri-or pararenal space and encase, surround or displace the kidney. On the other hand, primary LPSs of kidneys are rare sarcomas that originate from the lipoblasts of renal sinus fat and renal capsule and distort the architecture of the kidney (33,34). Less than 50 cases of primary renal LPSs have been documented in English literature to date.…”

Section: Liposarcomamentioning

confidence: 99%

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Pediatric and adult primary sarcomas of the kidney: a cross-sectional imaging review

et al. 2011

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There is a wide pathological spectrum of kidney sarcomas that show characteristic histology, ontogeny, and clinical-biological behavior. While leiomyosarcomas commonly arise from the capsule, solitary fibrous tumors and clear cell sarcomas typically show renal sinus and medullary epicenter, respectively. Although distribution and imaging findings of some sarcomas may be characteristic, definitive diagnosis warrants histopathological examination following surgery. Renal sarcomas manifest advanced disease at presentation and portend poor prognosis.

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Section: Liposarcomamentioning

confidence: 99%

“…Less than 50 cases of primary renal LPSs have been documented in English literature to date. Primary renal LPSs are commonly seen in 4th and 6th decades (34). Like other renal sarcomas, LPSs remain clinically asymptomatic till they are large.…”

Section: Liposarcomamentioning

confidence: 99%

Pediatric and adult primary sarcomas of the kidney: a cross-sectional imaging review

et al. 2011

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“…3 Liposarcoma arising from the renal sinus is extremely rare and there are two case reports thus far. 4,5 To our knowledge, our case is the first report of intravascular extended liposarcoma of the renal sinus.…”

Section: Discussionmentioning

confidence: 70%

Intravenous extended liposarcoma arising from renal sinus

Matsushita¹,

Itoh²,

Ishidoya³

et al. 2007

Int J of Urology

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Liposarcoma arising from the renal sinus is rare and there have been no reports of intravenous extended liposarcoma of the renal sinus thus far. We report a case of liposarcoma of the renal sinus that extended into the renal venous lumen. A 58-year-old woman was referred to our hospital for an intravascular fatty tumor of the right renal vein incidentally discovered by an abdominal screening ultrasonogram. Computer tomography revealed a fatty tumor extending from the right kidney to the right renal vein with no evidence of metastatic lesions. Total right nephrectomy and extirpation of the intravascular tumor of the right renal vein were carried out. Pathological findings showed welldifferentiated liposarcoma of the renal sinus. The tumor invaded to the right renal vein and the renal parenchyma.

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“…Of the remaining 44 studies, 4 were case series ( 26 – 29 ) and 40 were case reports ( 30 – 69 ), both documenting the recurrence and survival outcomes of RPLPS patients receiving R0-margin resection for RPLPS.…”

Section: Resultsmentioning

confidence: 99%

A systematic review of margin status in retroperitoneal liposarcomas: Does the R0 margin matter?

Paik¹,

Seo²,

Tan³

et al. 2022

Front. Oncol.

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Retroperitoneal liposarcomas (RPLPSs) are a rare tumor group for which current guidelines recommend aggressive en bloc resection to attain microscopically negative (R0) margins. To ensure R0 margins, resection of adherent or adjacent organs is often required. However, it is still unclear if R0 margins confer any additional benefit to patients over a grossly negative but microscopically positive (R1) margin. We performed a systematic search of PubMed and Embase databases for studies including patients receiving R0 or R1 resection for RPLPS. Nine retrospective cohort studies, one prospective cohort study, and 49 case reports/case series were included. A total of 552 patients with RPLPS were evaluated: 346 underwent R0 resection and 206 underwent R1 resection. In the R0 group, 5-year overall survival (OS) ranged from 58.3% to 85.7%; local recurrence (LR) ranged from 45.5% to 52.3%. In the R1 group, 5-year OS ranged from 35% to 55.3%; LR ranged from 66.7% to 91.7%. Among cohort studies, OS, disease-free survival (DFS), LR rate, and LR-free survival (LRFS) were significantly associated with R0 resections. Assessment of case series and reports suggested that the R0 margin led to a slightly higher morbidity than that of R1. In conclusion, this review found the R0 margin to be associated with reductions in LR rates and improved OS when compared with the R1 margins, though accompanied by slight increases in morbidity. The roles of tumor histotype and perioperative chemotherapy or radiotherapy were not well-elucidated in this review.

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Renal liposarcoma of the sinus renalis

Cited by 5 publications

References 4 publications

Pediatric and adult primary sarcomas of the kidney: a cross-sectional imaging review

Pediatric and adult primary sarcomas of the kidney: a cross-sectional imaging review

Intravenous extended liposarcoma arising from renal sinus

A systematic review of margin status in retroperitoneal liposarcomas: Does the R0 margin matter?

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