MR findings of renal cortical necrosis.
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.
Jeong
Jun Yong
JY
Department of Radiology and Institute of Radiation Medicine, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea.
Kim
Seung Hyup
SH
Sim
Jung Suk
JS
Lee
Hak Jong
HJ
Do
Kyung-Hyun
KH
Moon
Min Hoan
MH
Lee
Dong Kyung
DK
Seong
Chang Kyu
CK
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