Investigations
Investigations to consider
skin scraping of lesion (mineral oil preparation)
Test
Result
Test
Useful to exclude scabies as an alternative diagnosis.
Result
negative
skin biopsy
Test
Result
Test
Biopsy is rarely indicated and is non-specific (usually consistent with an arthropod bite reaction).
Result
non-specific superficial and deep perivascular infiltrate often with prominent eosinophils
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