Megalencephalic leucoencephalopathy with subcortical cysts (MLC) is a diffuse subcortical leucoencephalopathy with cystic white matter degeneration. Patients with MLC present with macrocephaly at the first year of life, and neurological abnormalities such as motor deterioration, ataxia, spasticity and cognitive defects progress later. MLC is caused by mutations in the gene MLC1, which encodes a novel protein, MLC1. There is no specific treatment for MLC. Management is based on physiotherapy procedures, psychomotor stimulation and treatment of seizures. We report a case of a 1-year-old boy with a normal birth and developmental history, presenting with progressive increase of head size; on further evaluation with CT and MRI of the brain, the child was diagnosed as MLC.
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http://dx.doi.org/10.1136/bcr-2015-211921 | DOI Listing |
Radiol Case Rep
February 2025
Junior Resident, Department of Radiodiagnosis, Kempegowda Institute of Medical Sciences Hospital and Research Centre, Rajiv Gandhi University of Health Sciences, Bangalore, 560004, Karnataka, India.
Here, we discuss a rare and to our knowledge, the first case of an atypical Van der Knaap's disease in a 6-year-old boy who presented with motor difficulties, developmental delay, cognitive impairment, seizures. The objective of this report is to highlight its unusual findings on MRI including internal capsule, brainstem, cerebellum involvement; subependymal nodular heterotopia, subependymal cysts, cortical laminar necrosis along with typical findings of megalencephalic leukoencephalopathy and subcortical cysts. The study also underscores the clinical implications of this complex pathology, with emphasis on comprehensive neuroradiological evaluation for atypical presentations to guide better diagnostic and management outcomes.
View Article and Find Full Text PDFParkinsonism Relat Disord
November 2024
Movement Disorder Centre, Institute of Neurosciences Kolkata, 185, Acharya Jagadish Chandra Bose Rd, Elgin, Kolkata, West Bengal, 700017, India. Electronic address:
Background: Megalencephalic leukoencephalopathy with subcortical cysts (MLC) has been described in the literature mostly as early-onset leukodystrophy with cerebellar ataxia being the main clinical phenotype. However, other associated movement disorders have also been reported discretely.
Cases: Here, we present seven cases of MLC.
Eur Child Adolesc Psychiatry
July 2024
Department of Pediatric Neurology, Ankara Bilkent City Hospital, Ankara, Turkey.
Objectives: Van der Knaap disease or megalencephalic leukoencephalopathy with subcortical cysts (MLC), is a slowly progressive neurodegenerative disease with macrocephaly. We present a case of MLC with a confirmed homozygous MLC1 mutation who presented with a psychotic attack at a very young age.
Case Presentation: An 11-year-old girl was admitted to the emergency room with delusions, hallucinations, and irritability.
Front Genet
February 2024
Department of Child Neurology, Amsterdam Leukodystrophy Center, Emma Children's Hospital, Amsterdam University Medical Center, Amsterdam Neuroscience, Amsterdam, Netherlands.
The leukodystrophy megalencephalic leukoencephalopathy with subcortical cysts (MLC) is characterized by infantile-onset macrocephaly and chronic edema of the brain white matter. With delayed onset, patients typically experience motor problems, epilepsy and slow cognitive decline. No treatment is available.
View Article and Find Full Text PDFMol Genet Genomic Med
February 2024
Department of Neurology, Jiangxi Provincial Children's Hospital, Nanchang, Jiangxi, China.
Background: Megalencephalic leukoencephalopathy with subcortical cysts (MLC) is a rare, inherited disorder that causes epilepsy, intellectual disorders, and early onset macrocephaly. MLC1 has been identified as a main pathogenic gene.
Methods: Clinical data such as magnetic resonance imaging (MRI), routine blood tests, and physical examinations were collected from proband.
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