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Elephantiasis is caused by obstruction of the lymphatic system, which results in the accumulation of a fluid called lymph in the affected areas. Functioning as part of the immune system, the lymphatic system helps to protect the body against infection and disease.
Elephantiasis: Introduction. Elephantiasis: Lymphatic obstruction which causes severe swelling in the legs and groin area. It is usually caused by infection with a parasitic worm which is transmitted by mosquito bites.lephantiasis: Introduction. Elephantiasis: Lymphatic obstruction which causes severe swelling in the legs and groin area. It is usually caused by infection with a parasitic worm which is transmitted by mosquito bites.