title: [Answer to April e-Quid].
authors.affiliation: Département de radiologie, Centre Hospitalo Universitaire, 2 rue Larrey, 49933 Angers Cedex 9.
authors.forename: T
authors.initials: T
authors.lastname: Tuilier
authors.forename: C
authors.initials: C
authors.lastname: Darii
authors.forename: B
authors.initials: B
authors.lastname: Delorme
authors.forename: D
authors.initials: D
authors.lastname: Weil
authors.forename: C
authors.initials: C
authors.lastname: Aubé
mesh_terms: D002648:Child; D003556:Cystitis / Q000150:complications / Q000000981:diagnostic imaging*; D004802:Eosinophilia / Q000150:complications / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D014463:Ultrasonography