title: Two cases with mild spontaneous peripelvic extravasation.
authors.forename: K
authors.initials: K
authors.lastname: Okada
authors.forename: S
authors.initials: S
authors.lastname: Takahashi
authors.forename: Y
authors.initials: Y
authors.lastname: Nagura
authors.forename: M
authors.initials: M
authors.lastname: Hatano
mesh_terms: D005119:Extravasation of Diagnostic and Therapeutic Materials / Q000000981:diagnostic imaging*; D006801:Humans; D007668:Kidney; D008297:Male; D008875:Middle Aged; D014463:Ultrasonography; D014567:Urography