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208 Breeds, 422 Health Conditions  |  Find a Vet

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Sporotrichosis

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Condition Overview

This is a skin and subcutaneous infection acquired by contact with spores in the soil. The spores gain access through puncture wounds caused by thorns and splinters. Therefore, the disease is seen most often in hunting dogs.

Symptoms

A nodular, draining, crusted sore forms at the site of the skin wound, usually on the trunk or head. There may be several small firm nodules in the lymph glands that form a chain beneath the skin. On rare occasion, the disease becomes systemic and spreads to the liver and the lungs. The outlook for these dogs is guarded.

Causes

The spores gain access through puncture wounds caused by thorns and splinters.

Diagnosis

The diagnosis is made by removing a piece of tissue and examining it under the microscope - or more conclusively, by growing the fungus in culture. A fluorescent antibody test can be performed on infected tissue or serum.

Treatment

Response is excellent when the infection is limited to the skin and surrounding tissues. Potassium iodide (a saturated solution) has been used, but care must be taken due to possible toxicity. Antifungals of the imidazole group are therefore the agents of choice. Treatment needs to be continued for a month after the clinical signs are resolved.

Prevention

It is important to wear rubber gloves and take strict hygienic precautions when handling all animals with drainage wounds.

Support

Please contact your veterinarian if you suspect your pet may be infected with this condition.

Show Sources & Contributors +

Sources

Dog Owners Home Veterinary Handbook

Publisher: Wiley Publishing, 2007

Website: http://www.wiley.com/WileyCDA/

Authors: Debra M. Eldredge, Liisa D. Carlson, Delbert G. Carlson, James M. Giffen MD

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