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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 HTLV-1 antibodies, as a preventive measure. ==Signs and symptoms== Some of the signs of Tropical spastic paraparesis are: *Leg instability *Urinary dysfunction. *Bowel dysfunction *Back pain *Erectile problems *Psoriasis Patients with TSP may also exhibit uveitis (inflammation of the uveal tract of the eye), arthritis (inflammation of one or more joints), pulmonary lymphocytic alveolitis (inflammation of the lung tissues), polymyositis (an inflammatory muscle disease), keratoconjunctivitis sicca (persistent dryness of the cornea and conjunctiva), and infectious dermatitis (inflammation of the skin). HTLV-1 can be transmitted via breastfeeding (mother to child), sexual contact, via blood contact (transfusion or reuse of same needle). 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Tropical spastic paraparesis」の詳細全文を読む スポンサード リンク
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