title: MR findings of renal cortical necrosis.
abstract: OBJECTIVE
  Evaluating the MR findings of renal cortical necrosis was the purpose of this study.
  
  
  METHODS
  Eight series of T1-/T2-weighted (n = 8) and contrast-enhanced T1-weighted (n = 4) MR images in six patients with renal cortical necrosis diagnosed by renal biopsy (n = 4) or on clinical grounds (n = 2) were reviewed. In those who had follow-up MRI (n = 2) or comparable CT (n = 3), interval changes of MR findings and comparison with CT images were done.
  
  
  RESULTS
  Swollen kidney with dark signal intensity rim involving the inner cortex and column of Bertin was noted on T2-and T1-weighted images. It was more conspicuous on T2-weighted images. The lesion did not enhance and was differentiated from uninvolved renal parenchyma. In the follow-up MRI, thickened dark signal intensity was more prominent and proved to be calcification or fibrosis.
  
  
  CONCLUSIONS
  MRI, especially T2-weighted and contrast-enhanced T1-weighted imaging, was helpful in evaluating renal cortical necrosis.
authors.affiliation: Department of Radiology and Institute of Radiation Medicine, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea.
authors.forename: Jun Yong
authors.initials: JY
authors.lastname: Jeong
authors.forename: Seung Hyup
authors.initials: SH
authors.lastname: Kim
authors.forename: Jung Suk
authors.initials: JS
authors.lastname: Sim
authors.forename: Hak Jong
authors.initials: HJ
authors.lastname: Lee
authors.forename: Kyung-Hyun
authors.initials: KH
authors.lastname: Do
authors.forename: Min Hoan
authors.initials: MH
authors.lastname: Moon
authors.forename: Dong Kyung
authors.initials: DK
authors.lastname: Lee
authors.forename: Chang Kyu
authors.initials: CK
authors.lastname: Seong
mesh_terms: D000328:Adult; D000368:Aged; D001706:Biopsy; D002114:Calcinosis / Q000175:diagnosis / Q000473:pathology; D003937:Diagnosis, Differential; D005260:Female; D005355:Fibrosis / Q000175:diagnosis / Q000473:pathology; D006801:Humans; D007673:Kidney Cortex Necrosis / Q000473:pathology*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed