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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

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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