title: Unusual mesoblastic nephroma in a young child.
abstract: We report a 1-year 11-month-old girl demonstrating a large renal mass with a unique presentation on imaging (US, CT and plain radiography), pathology and histology. The imaging features did not correspond with a Wilms' tumour, the most commonly found renal tumour in the child of this age. The US and CT findings resembled a benign lesion with an unusually high fat content. Histological evaluation demonstrated a congenital mesoblastic nephroma, a tumour entity typical for the neonatal period or early infancy, with an additional unusual, predominantly lipomatous differentiation.
authors.affiliation: Department of Paediatric Radiology, Clinic of Radiology, Charité, Campus Virchow Klinikum, Humboldt University at Berlin, Augustenburger Platz 1, 13353 Berlin, Germany. thomas.riebel@charite.de
authors.forename: Thomas
authors.initials: T
authors.lastname: Riebel
authors.forename: Christian
authors.initials: C
authors.lastname: Kebelmann-Betzing
authors.forename: Nanette
authors.initials: N
authors.lastname: Sarioglu
authors.forename: Joachim
authors.initials: J
authors.lastname: Wit
authors.forename: Karlheinz
authors.initials: K
authors.lastname: Seeger
mesh_terms: D005260:Female; D006801:Humans; D007223:Infant; D007668:Kidney / Q000002:abnormalities* / Q000000981:diagnostic imaging; D007680:Kidney Neoplasms / Q000151:congenital / Q000175:diagnosis* / Q000473:pathology; D018201:Nephroma, Mesoblastic / Q000151:congenital / Q000175:diagnosis* / Q000473:pathology; D014057:Tomography, X-Ray Computed; D018084:Ultrasonography, Interventional