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Table of Contents    
NEUROIMAGES
Year : 2018  |  Volume : 66  |  Issue : 6  |  Page : 1849-1850

Walker–Warburg syndrome


1 Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
2 Department of Ophthalmology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
3 Department of Radiodiagnosis, Postgraduate Institute of Medical Education and Research, Chandigarh, India

Date of Web Publication28-Nov-2018

Correspondence Address:
Dr. Suresh K Angurana
Department of Pediatrics, Advanced Pediatric Centre, Postgraduate Institute of Medical Education and Research, Chandigarh
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0028-3886.246262

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How to cite this article:
Suthar R, Angurana SK, Singh U, Singh P. Walker–Warburg syndrome. Neurol India 2018;66:1849-50

How to cite this URL:
Suthar R, Angurana SK, Singh U, Singh P. Walker–Warburg syndrome. Neurol India [serial online] 2018 [cited 2018 Dec 17];66:1849-50. Available from: http://www.neurologyindia.com/text.asp?2018/66/6/1849/246262




A 7-day-old female baby, born at term to a non-consanguineous couple with an uncomplicated antenatal period, presented with decreased movements since birth. Examination revealed a weight of 2.2 kg (<3rd centile), a length of 48 cm (15th centile), and an occipitofrontal circumference (OFC) of 38.5 cm (>97th centile). She had dysmorphism, microcornea, micro-ophthalmia [Figure 1], white pupillary reflex, corneal opacity, persistent hypertrophic primary vitreous (PHPV) on the right side, buphthalmos on the left side, and generalized hypotonia. The creatine kinase (CK) level was 1967 U/mL (normal: <190 U/mL). Magnetic resonance imaging of the brain shows characteristic features [Figure 1]b, [Figure 1]c, [Figure 1]d. Renal ultrasonography was normal. The patient was referred to a neurosurgeon and an ophthalmologist for further management, but the parents choose not to undergo any active treatment.
Figure 1: (a) Facial profile shows a large head, depressed nasal bridge, long philtrum, and micro-ophthalmia on the right side. (b) MRI brain T1 sagittal weighted images; (c and d) T2 axial sections showing the abnormal “Z” shaped and hypoplastic brainstem with kinking at the junction of midbrain and pons as well as at the cervico-medullary junction. Cerebellar hemispheres and vermis are atrophic with prominent posterior fossa cerebrospinal fluid (CSF) spaces. A large cyst measuring 5.9 × 4.5 cm is seen in the posterior fossa communicating with the fourth ventricle. A small bony defect in the occipital region (5 mm in size) in the midline, along with external herniation of the meninges and CSF into the subcutaneous tissue, causes a mild contour bulge. The supratentorial ventricular system is dilated. The corpus callosum is hypogenetic with an absent septum pellucidum. The brain parenchyma of bilateral cerebral hemispheres is thinned out. Bilateral frontal lobes show pachygyria and bilateral parieto-occipital regions show cobblestone polymicrogyria. The right globe is smaller in size with a distorted contour that is suggestive of micro-ophthalmia

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Characteristic clinico-radiological features were suggestive of Walker–Warburg syndrome (WWS), which is a rare congenital muscular dystrophy (CMD) with autosomal recessive inheritance associated with brain and eye abnormalities. WWS is the most severe form of CMD with most children dying before 3 years of age with the reported incidence of 1–2/1,00,000 live births.[1],[2],[3] WWS presents at birth and early infancy with generalized hypotonia, developmental delay, mental retardation, occasional seizures, and facial dysmorphism. Central nervous system abnormalities include type II cobblestone lissencephaly, hydrocephalus, vermian and generalized cerebellar malformation, a flat brain stem with small pyramids, hypomyelination, hypoplasia or agenesis of the corpus callosum, occipital encephalocele, and Dandy–Walker malformation. The eye abnormalities include the presence of cataract, a shallow anterior chamber, microcornea, micro-ophthalmia, lens defects, retinal detachment or dysplasia, hypoplasia, atrophy of the optic nerve and macula, PHPV, and coloboma. Glaucoma or buphthalmos may be present.[1],[2],[3],[4]

In any infant presenting with hypotonia, elevated CK, hydrocephalus, brain and eye malformation, and characteristic imaging, the diagnosis of WWS should be considered.

Acknowledgement

The authors are thankful to Geetika Singh, Guruprasad Peruri, and Venkataseshan Sundaram for their support during the patient management.

Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.



 
  References Top

1.
Agrawal S. Walker-Warburg syndrome. BMJ Case Rep 2011;2011.  Back to cited text no. 1
    
2.
Vajsar J, Schachter H. Walker-Warburg syndrome. Orphanet J Rare Dis 2006;1:29.  Back to cited text no. 2
    
3.
Mostacciuolo ML, Miorin M, Martinello F, Angelini C, Perini P, Trevisan CP. Genetic epidemiology of congenital muscular dystrophy in a sample from north-east Italy. Hum Genet 1996;97:277-9.  Back to cited text no. 3
    
4.
Lee CY. Walker-Warburg syndrome: Rare congenital muscular dystrophy associated with brain and eye abnormalities. Hong Kong Med J 2014;20:556e4-5.  Back to cited text no. 4
    


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