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DOI: 10.1055/s-2006-924226
Georg Thieme Verlag KG Stuttgart · New York
Atypical MRI Findings in Kearns-Sayre Syndrome: T2 Radial Stripes
Publication History
Received: November 4, 2005
Accepted after Revision: April 20, 2006
Publication Date:
14 June 2006 (online)
Abstract
Kearns-Sayre syndrome (KSS) is a mitochondrial disorder consisting of external ophthalmoplegia, retinitis pigmentosa, ataxia and heart block. Magnetic resonance imaging (MRI) shows abnormal T2 high signal intensity in the deep gray matter nuclei, the cerebellar and the subcortical white matter. We report an unusual MR pattern of KSS, where the T2 images revealed radially oriented, hypointense stripes in hyperintense white matter, a characteristic MRI pattern of lysosomal disease not previously reported in KSS.
Key words
Kearns-Sayre syndrome - MRI - radial stripes
References
- 1 Barker P B, Horská A. Neuroimaging in leukodystrophies. J Child Neurol. 2004; 19 559-570
- 2 Barkovich A J, Good W V, Koch T K, Berg B O. Mitochondrial disorders: analysis of their clinical and imaging characteristics. AJNR Am J Neuroradiol. 1993; 14 1119-1137
- 3 Barragan-Campos H M, Vallee J N, Lo D. et al . Brain magnetic resonance imaging findings in patients with mitochondrial cytopathies. Arch Neurol. 2005; 62 737-742
- 4 Becker L E. Lysosomes, peroxisomes and mitochondria: function and disorder. AJNR Am J Neuroradiol. 1992; 13 609-620
- 5 Kendall B E. Disorders of lysosomes, peroxisomes, and mitochondria. AJNR Am J Neuroradiol. 1992; 13 621-653
- 6 Osborn A G. Diagnostic Neuroradiology. St Louis, MO; Mosby-Year Book 1994: 740-743
- 7 Sacher M, Fatterpekar G M, Edelstein S, Sansaricq C, Naidich T P. MRI findings in an atypical case of Kearns-Sayre syndrome: a case report. Neuroradiology. 2005; 47 241-244
- 8 Simaan E M, Mikati M A, Touma E H, Rötig A. Unusual presentation of Kearns-Sayre syndrome in early childhood. Pediatr Neurol. 1999; 21 830-831
- 9 Valanne L, Ketonen L, Majander A, Suomalainen A, Pihko H. Neuroradiologic findings in children with mitochondrial disorders. AJNR Am J Neuroradiol. 1998; 19 369-377
- 10 van der Knaap M S, Breiter S N, Naidu S, Hart A A, Valk J. Defining and categorizing leukoencephalopathies of unknown origin: MR imaging approach. Radiology. 1999; 213 121-133
- 11 van der Knaap M S. Magnetic resonance in childhood white-matter disorders. Dev Med Child Neurol. 2001; 43 705-712
- 12 van der Voorn J P, Pouwels P J, Kamphorst W. et al . Histopathologic correlates of radial stripes on MR images in lysosomal storage disorders. AJNR Am J Neuroradiol. 2005; 26 442-446
M.D. Roula Hourani
Department of Diagnostic Radiology
The American University of Beirut Medical Center
Riad El Solh 1107 2020
Beirut
P. O. Box 11-0236
Lebanon
Email: rh64@aub.edu.lb