title: [The silent kidney. Evolving ultrasonic picture of emphysematous pyelonephritis: the vanishing kidney. Apropos of a case].
abstract: The authors report the progressive disappearing of the sonographical image of a previously visualized kidney in a case of emphysematous pyelonephritis. They have called the sonographic vanishing kidney "the sign of the Deaf Kidney". The non-visualisation of a kidney with advanced emphysematous pyelonephritis is due to the infiltration of the perirenal environment by a gas envelope and the filling of the excretory cavities by gas. The perirenal gas-bag forms a shield against ultrasonic waves. The sonographer must be aware of the eventuality of not being able to individualize a renal structure when wrapped in gas. He must then ask for a zonography of the renal area in order to confirm the gas-containing collection in the kidney.
authors.forename: A
authors.initials: A
authors.lastname: Eisenscher
authors.forename: A
authors.initials: A
authors.lastname: Reck
authors.forename: L
authors.initials: L
authors.lastname: Edel
authors.forename: F
authors.initials: F
authors.lastname: Jurascheck
authors.forename: C
authors.initials: C
authors.lastname: Schoenahl
authors.forename: D
authors.initials: D
authors.lastname: Laedlein
mesh_terms: D004646:Emphysema / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008875:Middle Aged; D011704:Pyelonephritis / Q000175:diagnosis*; D014463:Ultrasonography
vernacular_title: Le rein sourd. Aspect évolutif échographique de la pyélonéphrite emphysémateuse: l'évanescence rénale. A propos d'un cas.