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Case report : Case report of Toxocara canis migration to canine brain
( Moon Young Rhyoo ),( Kyung Hyun Lee ),( Ji Youl Jung ),( You Chan Bae ),( Hyun Kyoung Lee ),( Woo Hee Park ),( Soon Seek Yoon ),( Oun Kyung Moon ),( Myoung Heon Lee ) 한국예방수의학회 2013 예방수의학회지 Vol.37 No.2
Toxocara canis is a gastrointestinal helminthes of dogs found all over the world. When dogs ingest the infectious eggs of Toxocara canis, the eggs hatch and larvae penetrate the intestinal wall carried by migration to a wide variety of tis-sues. Despite its zoonotic effects, there have been few reports on dogs diagnosed as canine ascaridiasis in Korea. In this report, we present a case of canine toxocariasis by histopathologic finding and PCR assay. H&E stain showed granulomatous inflammation and intralesional larva in organs and even the cortex of the cerebellum. Toxocara canis was confirmed in the PCR assay where DNZ was extracted from heart, liver and cerebellum.
Rhyoo, Moon-Young,Lee, Kyung-Hyun,Moon, Oun-Kyung,Park, Woo-Hee,Bae, You-Chan,Jung, Ji-Youl,Yoon, Soon-Seek,Kim, Hye-Ryoung,Lee, Myoung-Heon,Lee, Eun-Joo,Ki, Mi-Ran,Jeong, Kyu-Shik World Veterinary Poultry Association 2015 Avian pathology Vol.44 No.3
<P>We compared the clinical signs, histopathological lesions and distribution of viral antigens among infected young (meat-type) and older (breeder) ducks that were naturally infected with the highly pathogenic avian influenza (HPAI) virus during the 2010-2011 Korean outbreak. The meat-type ducks had a high mortality rate (30%) and showed severe neurological signs such as head tremors and paresis. In contrast, HPAI-infected breeder ducks had minimal clinical signs but a decreased egg production rate. The histopathological characteristics of infected meat-type ducks included necrotic lesions of heart and brain, which may have primarily contributed to the high mortality rate. In contrast, the breeder ducks only presented necrotic splenitis, and viral antigens were only detected in the trachea, lungs and spleen. Younger ducks had a high viral titre in the organs, high levels of viral shedding and a high mortality rate after experimental HPAI virus infection. Compared to the breeder ducks, the meat-type ducks were raised in smaller farms that had poor quarantine and breeding facilities. It is therefore possible that better biosecurity in the breeder farms could have reduced the infection dose and subsequently the severity of the disease. Thus, age and management may be the influencing factors for HPAI susceptibility in ducks.</P>
Meningoencephalitis Caused by <i>Halicephalobus gingivalis</i> in a Thoroughbred Gelding
JUNG, Ji-Youl,LEE, Kyung-Hyun,RHYOO, Moon-Young,BYUN, Jae-Won,BAE, You-Chan,CHOI, Eunsang,KIM, Changsig,JEAN, Young-Hwa,LEE, Myoung-Heon,YOON, Soon-Seek The Japanese Society of Veterinary Science 2014 The Journal of veterinary medical science Vol.76 No.2
<P><B>ABSTRACT</B></P><P>A 6-year-old Thoroughbred gelding was euthanized after a 2-month period of abnormal neurological signs, such as circling left in his pen and hitting his head and body against the wall. After the horse was euthanized on the farm, a half of the brain and whole blood were submitted for diagnostic tests. Histopathological examination of the brain revealed granulomatous and eosinophilic meningoencephalitis with numerous intralesional nematodes, predominantly affecting the cerebrum. Multifocal malacic foci were scattered in the brain parenchyma. The intralesional parasites were identified as <I>Halicephalobus gingivalis</I> by morphological features and PCR testing. To the best of our knowledge, this is the first report of meningoencephalitis caused by <I>H. gingivalis</I> in the horse in Korea.</P>
류문영,정지열,허지웅,이명헌,구경녀,최권락,윤순식,Rhyoo, Moon-Young,Jung, Ji-Youl,Her, Ji-Woong,Lee, Myoung-Heon,Ku, Kyung-Nyer,Choi, Kwon-Rac,Yoon, Soon-Seek 대한수의학회 2014 大韓獸醫學會誌 Vol.54 No.4
In this study, we describe a case of epitheliogenesis imperfecta (EI) observed in the fetus of Korean native cattle. The fetus had multifocal areas of skin defect, especially on the distal portions of the four limbs, and the affected areas were bright-red and glistening. Histopathologically, these areas were characterized by complete absence of squamous epithelium, infiltration of inflammatory cells into the dermis, atrophy of hair follicles, sebaceous and sweat glands. To the best of our knowledge, this is the first report of epitheliogenesis imperfecta in Korean native cattle.
박우희 ( Woo Hee Park ),류문영 ( Moon Young Rhyoo ),이현경 ( Hyun Kyoung Lee ),최은진 ( Eun Jin Choi ),소병재 ( Byung Jae So ),이경현 ( Kyung Hyun Lee ) 한국동물위생학회 2015 韓國家畜衛生學會誌 Vol.38 No.4
Primary renal tumors are uncommon in dogs with prevalence rate of approximately 1%. Renal carcinoma originating from epithelium of proximal convoluted tubules are more likely to be affected to Middle-aged dogs (average age, 8y), males about twice as often as bitches. A 10-year-old, female, German Shepherd dog with history of anorexia, vomitting and hematuria was referred to the Animal Disease Diagnostic Division in Animal and Plant Quarantine Agency. The dog was necropsied and several organs were collected, fixed in 10% phosphate-buffered formalin, embedded in paraffin wax and sectioned for histopathology. Grossly, the kidneys were bilaterally enlarged (18×12×8 cm; left, 18×10×8 cm; right). The numerous cysts varying sizes from 3 to 6 cm in diameter were protruding from the surface of both kidney. A large nodule (10×6×6 cm) was discovered between cardiac and diaphragmatic lobe in the right lung. Immunohistochemical examination revealed strong positive reaction to cytokeratin and ki-67 in the nuclei of the epithelial tumor cells. But showed negative reactions to vimentin and CD10. Based on the pathological and immunohistochemical examination, we diagnosed as the bilateral renal cystadenocarcinoma in German shepherd dog.
류문영,정지열,이경현,허지웅,배유찬,이현경,백강현,이보람,진영화,김재명,이명헌,윤순식,Rhyoo, Moon-Young,Jung, Ji-Youl,Lee, Kyung-Hyun,Her, Ji-Woong,Bae, You-Chan,Lee, Hyun-Kyoung,Baek, Kang-Hyun,Lee, Bo-Ram,Jean, Young-Hwa,Kim, Jae-Myung 대한수의학회 2013 大韓獸醫學會誌 Vol.53 No.4
Two Korean black goat (approx. 2 and 3 years old) showing diarrhea and chronic weight loss were submitted to Animal and Plant Quarantine Agency. At necropsy, there were thickening of small intestine and enlargement of mesenteric lymph nodes. Microscopically, they had granulomatous enteritis in the small and large intestine and granulomatous lymphadenitis. By polymerase chain reaction (PCR) and acid fast stain, strong positive reaction and acid-fast rod bacteria were detected. According to the result of histopathology and PCR, we confirmed this case as Johne's disease. As far as we know, this is the first report of Johne's disease in Korean black goat.
Case report of Laryngeal rhabdomyosarcoma in Dachshund
( Kyung Hyun Lee ),( Soon Seek Yoon ),( Woo Hee Park ),( Moon Young Rhyoo ),( Young Hwa Jean ),( Ji Youl Jung ),( You-chan Bae ),( Sung Min Park ),( Myung Hyun Lee ) 한국수의공중보건학회 2012 예방수의학회지 Vol.36 No.3
A tissue sample of a laryngopharyngeal mass from a 9-year-old male Dachshund dog was submitted to the Animal, Plant and Fisheries Quarantine and Inspection Agency for histopathologic evaluation. The mass measured was 3.1×3.0× 5.0 ㎝in diameter and was first detected by computed tomography. Histopathologically, the nodules consisted of large round and polygonal cells with abundant eosinophilic cytoplasm. The mitotic index was 1~3 per view under a high power field (400×). Immunohistochemically, tumor cells were positive for vimentin and desmin, but negative for cytokeratin, S-100, and α-Smooth Muscle Actin (α-SMA). Based on these findings, the tumor was confirmed as Laryngopharyngeal Rhabdomyosarcoma. To the best of our knowledge, this is the first case report in Korea.