Tropical spastic paraparesis

Tropical spastic paraparesis
Other namesHTLV-I-associated myelopathy (HAM) or HTLV-I-associated myelopathy/tropical spastic paraparesis (HAM/TSP)
HTLV-1 which causes TSP
SpecialtyNeurology 
SymptomsBowel dysfunction
CausesHTLV-1 retrovirus causes 80% of cases
Diagnostic methodLumbar puncture, MRI
TreatmentInterferon alpha, corticosteroids

Tropical spastic paraparesis (TSP), is a medical condition that causes weakness, muscle spasms, and sensory disturbance by human T-lymphotropic virus resulting in paraparesis, weakness of the legs. As the name suggests, it is most common in tropical regions, including the Caribbean. Blood transfusion products are screened for human T-lymphotropic virus 1 (HTLV-1) antibodies, as a preventive measure.