Vulvar pythiosis in two captive camels (Camelus dromedarius). 2012

Ricardo Videla, and Sarel van Amstel, and Sarah H O'neill, and Linda A Frank, and Shelley J Newman, and Raquel Vilela, and Leonel Mendoza
College of Veterinary Medicine, Veterinary Teaching Hospital, University of Tennessee, Knoxville, Tennessee, USA.

Two camels (Camelus dromedarius), 3- and 4-years-old, respectively, from an eastern Tennessee wildlife farm presented with persistent weight loss and large vulvar masses. An initial biopsy of the vulvar mass of one of the camels performed by a local veterinarian showed eosinophilic dermatitis. An allergic or parasitic dermatitis was suspected. The two camels were treated with one dose of sodium iodide (66 mg/kg, in 1.0 L of normosolR, IV) and ivermectin 1% (200 ug/kg PO). Upon presentation at the Veterinary Teaching Hospital, University of Tennessee, additional biopsies of the masses again revealed eosinophilic dermatitis. Microscopic examination of a Gomori methenamine silver (GMS)-stained section prepared from the biopsy of one of the camels revealed the presence of fungal-like hyphae of a mold which was suspected to be Pythium insidiosum. The vulvar masses were surgically debulked in both animals and sodium iodide and Pythium-immunotherapy prescribed. Pythium insidiosum was isolated in culture and hyphae elements were detected in histological sections confirming the diagnosis of pythiosis in both animals. Despite signs of progressive healing of the vulvar surgical areas, postoperative persistent weight lost in one of the camels suggested the possibility of gastro intestinal (GI) tract pythiosis. This camel died 5 months after the first onset of clinical signs and unfortunately a necropsy was not performed. The other camel responded well to the combination of surgery, iodides, and immunotherapy and has currently rejoined the other members of the herd.

UI MeSH Term Description Entries
D011775 Pythium A genus of destructive root-parasitic OOMYCETES in the family Pythiaceae, order Peronosporales, commonly found in cultivated soils all over the world. Differentiation of zoospores takes place in a vesicle. Pythiums
D002162 Camelus Two-toed, hoofed mammals with four legs, a big-lipped snout, and a humped back belonging to the family Camelidae. They are native to North Africa, and Western and Central Asia. Camels,Dromedary,Bactrian Camels,Bractrian Camels,Camelus bactrianus,Camelus dromedarius,Bactrian Camel,Bractrian Camel,Camel,Camel, Bactrian,Camel, Bractrian,Camels, Bactrian,Camels, Bractrian,Dromedaries
D005260 Female Females
D006651 Histocytochemistry Study of intracellular distribution of chemicals, reaction sites, enzymes, etc., by means of staining reactions, radioactive isotope uptake, selective metal distribution in electron microscopy, or other methods. Cytochemistry
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013714 Tennessee State bounded on the north by Kentucky and Virginia, on the east by North Carolina, on the south by Georgia, Alabama and Mississippi, and on the west by Arkansas and Missouri.
D014845 Vulvar Diseases Pathological processes of the VULVA. Disease, Vulvar,Diseases, Vulvar,Vulvar Disease
D058968 Pythiosis A granulomatous disease caused by the aquatic organism PYTHIUM insidiosum and occurring primarily in horses, cattle, dogs, cats, fishes, and rarely in humans. It is classified into three forms: ocular, cutaneous, and arterial. Pythiosis Insidiosi,Pythium insidiosum Infection,Infection, Pythium insidiosum,Pythioses,Pythium insidiosum Infections

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