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Infantile bilateral striatal necrosis associated with human herpes virus-6 (HHV-6) infection
Aki Murakami1, Masafumi Morimoto, Shinsuke Adachi
1Department of Pediatrics, Kyoto Prefectural University of Medicine, Kawaramachi-Horikoji, Kamigyo, Kyoto 602-8566, Japan. akkylin@koto.kpu-m.ac.jp
Insights
This report details the first case of infantile bilateral striatal necrosis (IBSN) linked to human herpesvirus 6 (HHV-6) infection. A previously healthy infant developed neurological symptoms and striatal abnormalities after a rash illness.
Area of Science:
- Neurology
- Virology
- Pediatrics
Background:
- Infantile bilateral striatal necrosis (IBSN) is a rare neurological disorder.
- Human herpesvirus 6 (HHV-6) is a common viral infection in young children.
Observation:
- A 1-year-old female presented with acute neurological signs including oral dyskinesia and involuntary movements.
- The patient had a history of exanthema subitum (rose rash).
Findings:
- Magnetic resonance imaging (MRI) revealed abnormal signals in the bilateral striatal regions.
- Elevated serum HHV-6 IgM antibodies confirmed active HHV-6 infection.
- This case is the first reported instance of HHV-6 related IBSN.
Implications:
- This finding expands the known neurological complications associated with HHV-6 infection.
- Highlights the importance of considering HHV-6 in the differential diagnosis of acute neurological syndromes in infants.
- Suggests a potential etiological link between HHV-6 and striatal injury in children.
Abstract:
A 1-year-old female with acute bilateral striatal necrosis secondary to exanthema subitum associated with human herpesvirus 6 (HHV-6) infection is reported. The patient was previously healthy. She presented with progressive neurologic signs of oral dyskinesia and involuntary movements, after suffering from exanthema subitum. Initial magnetic resonance imaging (MRI) demonstrated abnormal signals in the bilateral striatal regions. In addition, the serum HHV-6 IgM class antibody level was significantly increased. The patient is thought to be the first case of HHV-6 infection related infantile bilateral striatal necrosis (IBSN).
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