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Menkes' disease: case report
Fabio Agertt1, Ana C S Crippa, Paulo J Lorenzoni
1Neurology and Neuropediatrics Services, Hospital de Clínicas, Federal University of Paraná, Rua General Carneiro 181, 80060-900 Curitiba, PR, Brazil.
Abstract:
Menkes disease is a rare neurodegenerative disorder due to an intracellular defect of a copper transport protein. We describe a 7 months male patient who presented with seizures, hypoactivity and absence of visual contact. The investigation disclosed pilli torti and thrycorrexis nodosa in the hair, low serum levels of both copper and ceruloplasmin, brain magnetic resonance study showed atrophy and white matter hypointensities on T1-weighted images, electroencephalogram reveals moderate background activity disorganization and epileptiform activity, and muscle biopsy with type 2 fiber atrophy. The clinical, laboratorial, genetic, muscle biopsy and neurophysiological findings in Menkes disease are discussed.
Insights
Menkes disease, a rare neurodegenerative disorder, involves copper transport defects. This case highlights key clinical, imaging, and biopsy findings in a 7-month-old infant, aiding diagnosis.
Area of Science:
- Neuroscience
- Genetics
- Pediatric Neurology
Background:
- Menkes disease is a rare X-linked recessive disorder caused by mutations in the ATP7A gene, affecting copper transport.
- It leads to a severe copper deficiency in the brain and other organs, resulting in progressive neurodegeneration.
Observation:
- A 7-month-old male infant presented with seizures, hypoactivity, and lack of visual contact.
- Physical examination revealed characteristic hair abnormalities: pili torti and trichorrhexis nodosa.
- Neurological assessment included electroencephalogram (EEG) showing disorganization and epileptiform activity, and brain MRI revealing atrophy and white matter changes.
Findings:
- Laboratory tests showed low serum copper and ceruloplasmin levels.
- Muscle biopsy demonstrated type 2 fiber atrophy.
- The combination of clinical presentation, hair abnormalities, biochemical, neuroimaging, and neurophysiological data confirmed the diagnosis of Menkes disease.
Implications:
- Early diagnosis of Menkes disease is crucial for potential interventions, although treatment options remain limited.
- Understanding the diverse clinical manifestations aids in recognizing this rare disorder.
- This case underscores the importance of a multidisciplinary approach in diagnosing complex neurodegenerative conditions in infants.
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