Elephantiasis /ˌɛlɨfənˈtaɪ.əsɨs/ EL-i-fən-TY-ə-sis is a disease that is characterized by the thickening of the skin and underlying tissues, especially in the legs and male genitals. In some cases the disease can cause certain body parts, such as the scrotum, to swell to the size of a basketball. It is caused by filariasis or podoconiosis.

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