ORF

Orf or echthyma contagiosa


Orf--also known as ecthyma contagiosa--is a viral infection of the skin usually acquired from a goat or sheep. It is usually an occupational hazard seen in farmers, shepherds, veterinarians and abattoir workers. The orf virus belongs to the parapox subgroup of the pox viruses.

Clinical

Initially, the patient develops an erythematous, inflammatory macule that develops into a red or blue-gray nodule. The hands or face are most commonly affected. Secondary bacterial infection may occur. Lymphadenopathy may be present. A bullous eruption [JAAD 2008:58;49-55] often identified as erythema multiforme may follow [Clin Infect Dis. 2013 Jun;56(11):1613, 1675-6].

Treatment

No specific treatment is needed as the condition will spontaneously resolve in 6-8 weeks. One should watch for secondary bacterial infection. If needed, cryosurgery [Dermatology 1999;198;162] may be done. Multiple case reports have shown benefit with the use of topical imiquimod and this should be considered, especially in immunocompromised hosts. The wearing of gloves and proper hygiene when working with animals should be recommended. Rarely, surgical excision is performed.

References

Dermatologica Sinica 33 (2015) 191--195

CDC

RegionalDerm

Homepage | FAQs | Contact Dr. White


It is not the intention of RegionalDerm.com to provide specific medical advice, diagnosis or treatment. RegionalDerm.com only intends to provide users with information regarding various medical conditions for educational purposes and will not provide specific medical advice. Information on RegionalDerm.com is not intended as a substitute for seeking medical treatment and you should always seek the advice of a qualified healthcare provider for diagnosis and for answers to your individual questions. Information contained on RegionalDerm.com should never cause you to disregard professional medical advice or delay seeking treatment. If you live in the United States and believe you are having a medical emergency call 911 immediately.