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Cutaneous nocardiosis - Skin
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Cutaneous nocardiosis - Skin

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Contributors: Art Papier MD, William Van Stoecker MD
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Synopsis

Nocardia spp. are soil-dwelling, ubiquitous, gram-positive, filamentous, branching bacteria that most commonly infect the lungs of patients with structural lung disease who have a malignancy or who are immunosuppressed. These infections can be found worldwide, but primary cutaneous nocardiosis (subtype: mycetoma) is found more commonly in subtropical and tropical climates.

Primary cutaneous nocardiosis (PCN) occurs after trauma (often with soil contact) to the skin and/or skin appendages of most often healthy patients. PCN may comprise up to 5% of all cases of nocardiosis. Most commonly PCN is caused by N. brasiliensis but may be caused by nearly any species of Nocardia.

Patients are more often male than female. Other risk factors include soil or sand exposure, gardening, farming, superficial injury from domestic shrubbery, intra-articular steroid injections, insect bites, cat scratches, or trauma from motor vehicle accidents leading to abrasions (ie, "road rash").

Lesions may occur suddenly and rapidly progress, reactivate after several years of dormancy, or slowly expand over 10 years. Rarely, PCN can disseminate to other organs, but this is usually in the setting of significant immunocompromise.

Codes

ICD10CM:
A43.1 – Cutaneous nocardiosis

SNOMEDCT:
64650008 – Cutaneous nocardiosis

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Last Updated: 12/03/2014
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Cutaneous nocardiosis - Skin
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Cutaneous nocardiosis : Plaque with ulcer, Skin ulcer, Pustules, Thick scaly plaques
Clinical image of Cutaneous nocardiosis
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