a disease caused by nematodes in the blood or tissues of the body causing blockage of lymphatic vessels. Death of the adult worms may lead to inflammation and permanent fibrosis; the condition may lead to serious symptoms, such as elephantiasis or blindness. See river blindness
Disease caused by the presence of parasitic worms or larvae in body tissue. Worms are round, long and threadlike. They are common in tropical and subtropical regions. They enter the body as microscopic larvae through the bite of a mosquito or other insect then infest the lymph glands and channels. Treatment is not very effective. After many years, this disease usually results in elephantiasis, characterized by tremendous swelling of the external genitals and legs. Overlying skin becomes dark, thick and coarse.