Cellular mesoblastic nephroma (infantile renal fibrosarcoma): institutional review of the clinical, diagnostic imaging, and pathologic features of a distinctive neoplasm of infancy

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dc.contributor.authorBayindir, Petek
dc.contributor.authorGuillerman, Robert Paul
dc.contributor.authorHicks, M. John
dc.contributor.authorChintagumpala, M. Murali
dc.date.accessioned2019-10-27T20:49:08Z
dc.date.available2019-10-27T20:49:08Z
dc.date.issued2009
dc.departmentEge Üniversitesien_US
dc.description.abstractCellular mesoblastic nephroma has been associated with a more aggressive course than classic mesoblastic nephroma, including local recurrences and metastases. To define the clinicopathologic and imaging features distinguishing cellular from classic mesoblastic nephroma. Retrospective review of clinical charts and imaging studies of ten children with mesoblastic nephroma from 1996 to 2007 at a large children's hospital. In six children the mesoblastic nephroma was pure cellular, in two mixed, and in two classic. The mean ages at diagnosis were 107 days for those with the cellular form, and 32 days for those with the classic form. Hypoechoic or low-attenuation regions representing necrosis or hemorrhage were found in all children with the cellular form and in none of those with the classic form. Hypertension was present in 70% and hypercalcemia in 20% of the children and resolved following nephrectomy. Two cellular tumors encased major abdominal vessels. Local recurrence and metastases occurred within 6 months of tumor resection in two children with the cellular form. Intraspinal extension and intratumoral pseudoaneurysm were seen in one child with the cellular form. The cellular tumors shared histopathologic features with infantile fibrosarcoma (IFS), and RT-PCR testing in two children with the cellular form revealed the t(12;15) ETV6-NTRK3 gene fusion common to IFS. Distinct from the classic form, cellular mesoblastic nephroma is more heterogeneous in appearance on imaging, tends to be larger and present later in infancy, and can exhibit aggressive behavior including vascular encasement and metastasis. Intraspinal extension and intratumoral pseudoaneurysm are previously unreported findings encountered in our cellular mesoblastic nephroma series. The shared histopathology and translocation gene fusion support the concept of cellular mesoblastic nephroma as the renal form of IFS.en_US
dc.identifier.doi10.1007/s00247-009-1348-9en_US
dc.identifier.endpage1074en_US
dc.identifier.issn0301-0449
dc.identifier.issn1432-1998
dc.identifier.issue10en_US
dc.identifier.pmid19629465en_US
dc.identifier.startpage1066en_US
dc.identifier.urihttps://doi.org/10.1007/s00247-009-1348-9
dc.identifier.urihttps://hdl.handle.net/11454/42820
dc.identifier.volume39en_US
dc.identifier.wosWOS:000269861000007en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofPediatric Radiologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectMesoblastic nephromaen_US
dc.subjectCellular typeen_US
dc.subjectInfantile fibrosarcomaen_US
dc.subjectCTen_US
dc.titleCellular mesoblastic nephroma (infantile renal fibrosarcoma): institutional review of the clinical, diagnostic imaging, and pathologic features of a distinctive neoplasm of infancyen_US
dc.typeArticleen_US

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