Strongyloides stercoralis infection of the intestinal tract sometimes produces larvae that have the ability to reinvade the patient's skin in the perirectal area. This produces a readily recognizable variant of creeping eruption. The lesions move more rapidly than the more common creeping eruption, often up to 10 cm/hr, due to Ancylostoma braziliense. In the Strongyloides disorder, the lesions start in the perirectal area and move out over the thighs and abdomen. The disease had been present for ten years in the patient reported here. Larva currens responds to systemic thiabendazole. It can persist for years after a patient leaves an area in which Strongyloides is endemic.
Stone OJ, Newell GB, Mullins JF. Cutaneous Strongyloidiasis: Larva Currens. Arch Dermatol. 1972;106(5):734-736. doi:10.1001/archderm.1972.01620140078024