title: Retroperitoneal infiltration as the first sign of Erdheim-Chester disease.
abstract: We report a case of an elderly man with bladder cancer, in whom the first manifestation of Erdheim-Chester disease was retroperitoneal infiltration detected during routine follow-up. The disease was diagnosed on the basis of histology and immunochemistry findings (presence of histiocytes) and of imaging findings (plain radiography, computed tomography, magnetic resonance imaging, and bone scintigraphy). The differential diagnosis with respect to other causes of retroperitoneal infiltration is discussed.
authors.affiliation: Department of Urology, University Hospital, Lille, France. pierre_colin@msn.com
authors.forename: Pierre
authors.initials: P
authors.lastname: Colin
authors.forename: Charles
authors.initials: C
authors.lastname: Ballereau
authors.forename: Marc
authors.initials: M
authors.lastname: Lambert
authors.forename: Laurent
authors.initials: L
authors.lastname: Lemaitre
authors.forename: Xavier
authors.initials: X
authors.lastname: Leroy
authors.forename: Jacques
authors.initials: J
authors.lastname: Biserte
mesh_terms: D000368:Aged; D031249:Erdheim-Chester Disease / Q000150:complications* / Q000175:diagnosis*; D006801:Humans; D008297:Male; D012185:Retroperitoneal Fibrosis / Q000209:etiology*