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Cutaneous pythiosis in a goat
P M S do Carmo1, R A Portela1, T R Silva1
1Veterinary Hospital, Federal University of Campina Grande, Patos, Paraíba, Brazil.
Journal of Comparative Pathology
|January 4, 2015
Summary
Pythiosis, a rare infection, is documented for the first time in a goat. The condition, caused by Pythium insidiosum, manifested as a skin lesion after aquatic exposure.
Area of Science:
- Veterinary Mycology
- Infectious Diseases
- Pathology
Background:
- Pythiosis is a globally emerging infectious disease caused by the oomycete Pythium insidiosum.
- It primarily affects large animals, including horses and cattle, often through skin or gastrointestinal routes.
- Limited information exists regarding pythiosis in small ruminants.
Observation:
- A goat with daily aquatic environment access developed a skin ulcer on its hindlimb.
- Histopathological examination revealed dermal pyogranulomas.
- Unique 'negatively stained' hyphae were observed within the lesions.
Findings:
- Immunohistochemical analysis confirmed the presence of Pythium insidiosum in the goat's dermal lesions.
- This represents the first documented case of pythiosis in a goat.
- The findings highlight a new host susceptibility for this oomycete.
Implications:
- This case expands the known host range of Pythium insidiosum to include goats.
- It underscores the importance of considering pythiosis in goats with ulcerative skin lesions, especially with aquatic exposure.
- Further research is needed to understand the epidemiology and clinical presentation of pythiosis in small ruminants.
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