Diagnosis and Surgical Management of Pythiosis in Draft Horses: Report of 33 Cases in Egypt

A total of 33 draft horses suffering from cutaneous pythiosis were referred to Mansoura Veterinary Teaching Hospital, Egypt, between October 2008 and January 2011. The animals presented ulcerative, granulomatous lesions located at the ventral aspect of the thorax (n = 10), abdomen (n = 14), forelimb...

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Published inJournal of equine veterinary science Vol. 32; no. 3; pp. 164 - 169
Main Authors Mosbah, Esam, Karrouf, Gamal I.A., Younis, Emad A., Saad, Hussien S., Ahdy, Ahmed, Zaghloul, Adel E.
Format Journal Article
LanguageEnglish
Published Elsevier Inc 01.03.2012
Subjects
Draft-Horses
Equine
Kunkers
Pythiosis
Pythium insidiosum
Equine
Pythium insidiosum
Kunkers
Pythiosis
Draft-Horses
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Summary:A total of 33 draft horses suffering from cutaneous pythiosis were referred to Mansoura Veterinary Teaching Hospital, Egypt, between October 2008 and January 2011. The animals presented ulcerative, granulomatous lesions located at the ventral aspect of the thorax (n = 10), abdomen (n = 14), forelimbs (n = 5), hind limbs (n = 2), and presternal region (n = 1) and at withers (n=1). The animals suffered from ulcerations composed of whitish yellow tissue having numerous draining tracts that discharge serosanguineous or bloody exudates. Initial diagnosis was based on location, gross lesion, and presence of kunkers. Histopathological evaluation revealed an eosinophilic granulomatous reaction associated with intralesional hyphae characteristic of Pythium insidiosum visualized by Gomori methenamine silver stain. The outcome of surgical excision revealed complete cure in 24 cases. Euthanasia was indicated in 9 cases.
ISSN:0737-0806
1542-7412
DOI:10.1016/j.jevs.2011.08.014