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HTLV-I associated myelopathy/tropical spastic paraparesis in a 7-year-old boy associated with infective dermatitis
Maria de Fátima S P de Oliveira1, Achiléa L Bittencourt, Carlos Brites
1Department of Internal Medicine, School of Medicine, Federal University of Bahia (UFBA), Brazil. fatimaoliv@bol.com.br
Abstract:
HTLV-I associated myelopathy/tropical spastic paraparesis (HAM/TSP) is a chronic myelopathy characterized by a slowly progressive spastic paraparesis and sphincter disturbances beginning in adulthood. Only eight well-documented cases occurring in childhood and adolescence have been described. Infective dermatitis associated to the HTLV-I (IDH) is a chronic eczema of childhood occurring in vertically infected carriers. Here we describe a 7-year-old boy with HAM/TSP and IDH. The neurological manifestations were spastic gait, hyperreflexia of lower limbs, clonus and bilateral Babinski's sign. High levels of HTLV-I antibodies in the serum and in the cerebrospinal fluid were observed. The association of these two diseases and the early onset of HAM/TSP are probably related to a strong humoral anti-HTLV-I response.
Insights
Human T-lymphotropic virus type I (HTLV-I) associated myelopathy/tropical spastic paraparesis (HAM/TSP) can occur in children, as seen in a 7-year-old boy with both HAM/TSP and infective dermatitis (IDH). This case highlights a strong anti-HTLV-I immune response potentially driving early-onset neurological disease.
Area of Science:
- Neurology
- Immunology
- Infectious Diseases
Background:
- Human T-lymphotropic virus type I (HTLV-I) infection is linked to HTLV-I associated myelopathy/tropical spastic paraparesis (HAM/TSP), a chronic neurological disorder.
- HAM/TSP typically manifests in adulthood, with childhood cases being exceptionally rare.
Observation:
- A 7-year-old boy presented with neurological symptoms including spastic gait, hyperreflexia, clonus, and bilateral Babinski's sign.
- The patient also had infective dermatitis associated with HTLV-I (IDH), a chronic eczema common in vertically infected children.
- Elevated levels of HTLV-I antibodies were detected in both serum and cerebrospinal fluid.
Findings:
- This case describes the co-occurrence of HAM/TSP and IDH in a pediatric patient.
- The early onset of HAM/TSP in this child suggests a potential link to a robust humoral immune response against HTLV-I.
Implications:
- This case expands the understanding of HAM/TSP's clinical spectrum and age of onset.
- It underscores the importance of considering HTLV-I infection in children presenting with neurological deficits and chronic skin conditions.
- Further research into the immunopathogenesis of HTLV-I is warranted to understand early-onset neurological manifestations.
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