Alpay Alkan, Ramazan Kutlu, Tamer Baysal, Ahmet Sığırcı, Ergun Sönmezgöz, Cengiz Yakıncı

REVERSIBLE POSTERIOR LEUKOENCEPHALOPATHY IN A CHILD WITH ACUTE GLOMERULONEPHRITIS: FOLLOW-UP MR IMAGING

Hypertensive encephalopathy is the mostcommon cause of reversible posteriorleukoencephalopathy syndrome, which is quiterare in the pediatric age group. Diffuse vasogenicedema in the posterior circulation territories atthe initial stages and complete disappearance ofedema on follow-up imaging is the characteristicfeature of this syndrome. Frontal and temporallobe involvement is rarely seen. In this report wepresent the follow-up MR and diffusion weightedimaging findings of reversible posteriorleukoencephalopathy syndrome in a pediatriccase with this rare involvement in addition tocharacteristic involvement localization.Key Words: Reversible posteriorleukoencephalopathy, Glomerulonephritis, MRimaging.

PDF

___

Hinchey J, Chaves C, Appignani B, et al. A reversible posterior leukoencephalopathy syndrome. IÏ Engl J Med 1996;334:494-500.
Sean OC, Ricardo CS, Eduard M, Charles LT. Posterior reversible encephalopathy syndrome: Utility of fluid-attenuated inversion recovery MR Imaging in the detection of cortical and subcortical lesions. AJHR 2000,21:1199-1206.
Jones BV, Egel hoff JC, Patterson RJ. Hypertensive encephalopathy in children. AJHR 1997;18:101-106.
Seze J, Mastain B, Stojkovic T, et al. Unusual MR findings of the brain stem in aiterial hypertension. AJHR 2000:21:391 -394.
Pavlakis SO, Frank Y, Chusid R. Hypertensive encephalopathy, reversible occipitoparietal encephalopathy, or reversible posterior
lekoencephalopathy: three names for an old syndrome. J Child Hcurol 1999;14:277-280.
Wright RR, Mathews HD. Hypertensive encephalopathy in childhood. J Child Heurol
,1 1:193-196.
Ay H, Buonanno FS, Schaefer PW, et al. Posterior leukoencephalopathy without severe hypertension: utility of diffusion- weighted MRI. Heurology 1998;5 I ; / 369- 1376.
Engelter ST, Petrciia JR, Alberts MJ, Provenzale JM. Assessment of cerebral microcirculation in a patient with hypertensive encephalopathy using MR perfusion imaging. AJR 1999; I 73:1491-1493.
SchwaHz RB, Mulkem RV, Gudbjartson H,
Jolesz E. Diffusion-weighted MR imaging and hypertensive encephalopathy: clues to
pathogenesis. AJHR 1998;19:859-862.
Morello E, Marino A, Cigolini F, Cappellari F. Hypertensive brain stem encephalopathy: clinically silent massive edema of the pons. Hcurol Sci 2001;22:317-320.
Srivastava RH. Acute glomerulonephritis. Indian J Pcdiatr 1999;66:199-205.
Saatci I, Topaloglu R. Cranial computed tomographic findings in a patient with hypertensive encephalopathy in acute poststreptococcal glomerulonephritis. Turk J Pcdiatr 1994;36:325-328.
WeingaHen H, Barbut D, Filippi C, Zimmerman RD. Acute hypertensive encephalopathy: findings on spin-echo and gradient-echo MR imaging. AJR 1994; 162:665-670.
Yoshida H, Yamamoto T, Mori H, Maeda M. Reversible posterior leukoencephalopathy syndrome in a patient with hypertensive encephalopathy. Heurol Med Chir 2001:41:364-369.
Provenzale JM, Petrella JR, Cruz Jr LCH, et ai.
Quantitative assessment of diffusion abnormalities in posterior reversible encephalopathy syndrome. AJHR
;22:1455-1461.
Garg RH. Posterior leukoencephalopathy sydrome. Postgrad Med J 2001;77:24 28.