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[Crusted scabies (Norwegian scabies) a case report]
Nora Fernández-Tamayo1, Rebeca Flores-Villa, Jaime Blanco-Aguilar
1Departamento de Anatomía Patológica del ISSSTEP, Puebla, Pue., México.
Summary
Crusted (Norwegian) scabies, an extreme form of the condition, was diagnosed in an HIV-positive man with persistent lesions. Successful treatment involved oral ivermectin and topical benzyl benzoate, leading to rapid remission.
Area of Science:
- Dermatology
- Infectious Diseases
Background:
- Crusted (Norwegian) scabies is a severe form of scabies, primarily affecting immunosuppressed individuals.
- Early misdiagnosis can occur, with treatments like steroids and antipruritics proving ineffective.
Observation:
- A 42-year-old homosexual male with HIV presented with a 4-month history of pruritic lesions on his trunk and extremities.
- Clinical presentation included xerosis, decapitated papules, erythema, hyperchromic stains, abrasions, and nail pigmentation.
Findings:
- A skin biopsy confirmed the diagnosis of Crusted (Norwegian) scabies, differentiating it from initial suspected psoriaform dermatitis.
- Treatment with a single oral dose of ivermectin and topical benzyl benzoate resulted in complete remission within two days.
Implications:
- This case highlights the importance of considering Crusted (Norwegian) scabies in immunosuppressed patients with atypical dermatological presentations.
- Prompt diagnosis and appropriate treatment with oral ivermectin and topical agents can lead to rapid patient recovery.
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