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Canine Distemper Virus Infection in Fennec Fox (<i>Vulpes zerda</i>)
WOO, Gye-Hyeong,JHO, Yeon-Sook,BAK, Eun-Jung Japanese Society of Veterinary Science 2010 The Journal of veterinary medical science Vol.72 No.8
<P>Fifteen 8-month-old fennec foxes imported from Sudan showed fever, mucopurulent ocular discharge, diarrhea, severe emaciation, seizures, and generalized ataxia, and died. Three of the 15 animals were presented for diagnostic investigation. Severe dehydration, brain congestion, and gastric ulcers were observed in all animals. In one animal, the lungs had failed to collapse and were multifocally dark red in appearance. Histopathologically, there were lymphohistiocytic meningoencephalitis with malacia, mild interstitial pneumonia, lymphoid depletion of lymphoid tissues and organs, and intestinal villous atrophy with intralesional coccidia. There were many intracytoplasmic and/or intranuclear inclusion bodies in the epithelial cells of the medullary velum, lungs, liver, kidneys, trachea, pancreas, stomach, gall bladder, urinary bladder, and ureters, and in macrophages of malacia foci and lymphocytes and macrophages of lymphoid organs. Additionally, intestinal coccidia were confirmed to be <I>Isospora</I> species by a fecal test. To our knowledge, this is the first report of canine distemper with intestinal coccidiosis in fennec fox.</P>
Woo, Gye-Hyeong,Kim, Ha-Young,Park, Jung-Won,Bak, Eun-Jung,Kim, Jin-Young,Choi, Cheong-Up The Korean Society of Veterinary Service 2007 韓國家畜衛生學會誌 Vol.30 No.4
A 16-year-old female mixed dog was submitted for examination at the pathology division of national veterinary research and quarantine service (NVRQS). Grossly, white or grayish spherical, multinodular, firm to friable masses were present in the tibiofibula to the pharenge area of the right limb, and dysphagia, breathing difficulties and tachypnea were shown. Various-sized white or grayish black masses were scattered in lungs and diaphragm and one mass was observed in the trachea and in the jejunum, respectively. Histopathologically, the neoplastic cells were composed of polygonal or spindle shaped cells with various sized round to oval nuclei and abundant cytoplasm. These cells formed lobules or nests separated by fine connective tissue and contained little amount of melanin pigments. Melanin pigments were stained dark gray or black with Fontana-Masson method. Melanosomes were also ultrastructurally demonstrable by electron microscopy. Based on above results, the present case was diagnosed as canine malignant melanoma originating from the lower limb and digit.
Aspergillus fumigatus infection in an ostrich with an enlarged neck due to respiratory problems
Woo, Gye-Hyeong The Korean Society of Veterinary Science 2019 大韓獸醫學會誌 Vol.59 No.4
This study describes a sudden death in an ostrich (Struthio camelus) with a big neck. Grossly, the air sacs were thickened. Yellow to white, round or coalescent material was scattered on the air sacs. However, the cervical air sac was normal. Histopathologically, multinucleated giant cells, heterophils, and macrophages had infiltrated the air sacs, and many hyphae were seen in the air sacs and on their surfaces. Pyogranulomatous inflammation with intralesional hyphae was observed throughout the lungs. Aspergillus fumigatus was identified microbiologically. In conclusion, the affected animal died because of the respiratory disturbance caused by mycotic airsacculitis and pneumonia.
WOO, Gye-Hyeong,JEAN, Young-Hwa,BAK, Eun-Jung,KANG, Seungwon,ROH, In-Soon,LEE, Kyung-Hyun,HWANG, Eui-Kyung,LEE, O-Soo Japanese Society of Veterinary Science 2010 The Journal of veterinary medical science Vol.72 No.9
<P>A dead whooper swan was found in an area of cropland near a stream and was submitted to the National Veterinary Research and Quarantine Service (NVRQS) in Korea. The affected animal was in relatively good condition. Grossly, the heart was enlarged and had pale and dark red stripes. A white, elongate parasite was seen on the cut surface of the heart. Histopathologically, severe lymphohistiocytic inflammation, myocardial necrosis, many adult heart worms and microfilariae were observed in the myocardium. Hemorrhage, lymphocytic inflammation, mineralization, and myocardial degeneration were also seen around the adult worms. No bacteria or viruses were isolated from the affected bird. The pathological findings indicate that the whooper swan was infected with nematodes, presumably <I>Sarconema eurycerca</I>, resulting in non-suppurative myocarditis.</P>