title: Unusual Malignant Solid Neoplasms of the Kidney: Cross-Sectional Imaging Findings.
abstract: Malignant kidney neoplasms are the most frequently encountered solid kidney masses. Although renal cell carcinoma is the major renal malignancy, other solid malignant renal masses should be considered in the differential diagnosis of solid renal masses that do not contain a macroscopic fatty component. In this pictorial essay, we present the imaging findings of a primitive neuroectodermal tumor, primary liposarcoma of the kidney, primary neuroendocrine tumor, leiomyosarcoma, synovial sarcoma, malignant fibrous histiocytoma, sclerosing fibrosarcoma and renal metastasis of osteosarcoma.
authors.affiliation: Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA.
authors.forename: Ali Devrim
authors.initials: AD
authors.lastname: Karaosmanoğlu
authors.affiliation: Department of Radiology, University of Hacettepe School of Medicine, Ankara 06100, Turkey.
authors.forename: Mehmet Ruhi
authors.initials: MR
authors.lastname: Onur
authors.affiliation: Department of Radiology, University of California School of Medicine, Irvine, CA 92697, USA.
authors.forename: Ali
authors.initials: A
authors.lastname: Shirkhoda
authors.affiliation: Department of Radiology, University of Hacettepe, Faculty of Medicine, Ankara 06100, Turkey.
authors.forename: Mustafa
authors.initials: M
authors.lastname: Ozmen
authors.affiliation: Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA.
authors.forename: Peter F
authors.initials: PF
authors.lastname: Hahn
mesh_terms: D001859:Bone Neoplasms / Q000556:secondary; D002292:Carcinoma, Renal Cell / Q000000981:diagnostic imaging / Q000473:pathology; D003937:Diagnosis, Differential; D005354:Fibrosarcoma / Q000000981:diagnostic imaging; D051642:Histiocytoma / Q000000981:diagnostic imaging; D006801:Humans; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D007890:Leiomyosarcoma / Q000000981:diagnostic imaging / Q000473:pathology; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D018242:Neuroectodermal Tumors, Primitive / Q000000981:diagnostic imaging / Q000473:pathology; D012516:Osteosarcoma / Q000473:pathology; D012509:Sarcoma; D013584:Sarcoma, Synovial / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed
keywords: Computed tomography; Kidney; Magnetic resonance imaging; Malignant tumors