title: Retroperitoneal malignant fibrous histiocytoma. Report of two cases.
abstract: We present 2 cases of malignant fibrous histiocytoma (MFH) of the retroperitoneum. Only 12-14% of all MFH occur in the retroperitoneum. Both patients were operated with the diagnosis of a kidney tumor. The surgical exposure showed a tumor arising from the retroperitoneum, infiltrating or surrounding the kidney. We would like to emphasize that large tumors of the retroperitoneum which resemble kidney tumors can also arise from mesenchymal tissue.
authors.affiliation: Department of Urology, University Hospital of Zürich, Switzerland.
authors.forename: G
authors.initials: G
authors.lastname: Zünd
authors.forename: B
authors.initials: B
authors.lastname: Kreienbühl
authors.forename: D
authors.initials: D
authors.lastname: Gobet
authors.forename: D
authors.initials: D
authors.lastname: Hauri
mesh_terms: D003937:Diagnosis, Differential; D018219:Histiocytoma, Benign Fibrous / Q000175:diagnosis* / Q000601:surgery; D006801:Humans; D007680:Kidney Neoplasms / Q000175:diagnosis* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis* / Q000601:surgery