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Wednesday, April 6, 2011

ANCYLOSTOMA BRASILIENSE AND ANCYLOSTOMA CANINUM

These are intestinal parasites of dogs with a similar life cycle to A.duodenale, but in man they cause a creeping. eruption or cutaneous larva migrans. The larva burrows between the corium and stratum granulosum and progresses irregularly at about 1cm in 24 hours.

Clinical features
The skin at the advancing end is erythematous and may vesiculate while that over the older part of the burrow is discoloured and scaly. Itching may be intense. The larva may remain active for months.

Management
Treatment is tropical. One 0.5 g tablet of thiabendazole is ground in to 5g petroleum jelly rubbed into affected site twice daily for a few days.

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