title: Emphysematous pyelonephritis- conversion of type i to type II appearance on serial CT studies.
abstract: Recently, emphysematous pyelonephritis (EPN) has been classified into two subtypes based on CT findings. We recently experienced a patient whose CT image changed from type I (extensive destruction of the renal parenchyma with a large amount of air density without any fluid collection) to type II (containing a large amount of fluid) during the course of conservative treatment. We believe that some patients with type I EPN can change to type II EPN.
authors.affiliation: Department of Radiology, Juntendo University Urayasu Hospital, Chiba, Urayasu, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Komura
authors.forename: N
authors.initials: N
authors.lastname: Shindoh
authors.forename: O
authors.initials: O
authors.lastname: Minowa
authors.forename: Y
authors.initials: Y
authors.lastname: Ozaki
authors.forename: S
authors.initials: S
authors.lastname: Kyogoku
authors.forename: Y
authors.initials: Y
authors.lastname: Sumi
mesh_terms: D018450:Disease Progression; D004646:Emphysema / Q000000981:diagnostic imaging* / Q000382:microbiology; D004926:Escherichia coli / Q000302:isolation & purification*; D004927:Escherichia coli Infections / Q000175:diagnosis* / Q000382:microbiology; D005260:Female; D006801:Humans; D008875:Middle Aged; D011704:Pyelonephritis / Q000000981:diagnostic imaging* / Q000382:microbiology; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed / Q000379:methods*