Korean J Pathol.
1996 May;30(5):466-469.
Cutaneous Infection of Larval strongyloides stercoralis Manifesting Pseudolymphomatous Reactions
- Affiliations
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- 1Department of Pathology, School of Medicine, Hallym University, Seoul, Korea.
- 2Department of Pathology, Chung-Ang University, Seoul, Korea.
- 3Department of parasitology, Catholic Medical College, Seoul, Korea.
Abstract
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Larval nematodes belonging to genera Ancylostoma, Strongyloides, Rhabditis, Gnathostoma or microfilariae (Onchocerca volvulus)/adult filaria (Loa loa) can invade human skin, each making different lesion. In a 71-year old immunocompetent Koreanman with 23% eosinophilia and elevated serum IgG (2530 mg/dl), a skin biopsy was undertaken for a nodular lesion at abdominal wall. A longitudinal section of a larval nematode was recognized in mid-dermal tunnel surrounded by pseudolymphomatous diffuse lymphoreticular cell infiltration. The larval nematode, 15 um in maximum diameter, had outermost cuticular layer and pale intestinal cells. The nematode section was identified as a filariform larva of Strongyloides stercoralis mainly based on its maximum diameter. In Korea, this is the first description of a cutaneous larval nematode infection. This case did not show quick migration of lesion which is a typical manifestation of classical cutaneous larva migrans.