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Juvenile cellulitis in a 7-month-old Shih-Tzu dog
Byeong-Teck Kang, Ji-Hye Yi, Jung-Hyang Sur, Dong-In Jung, Ji-Houn Kang, Dong-Woo Chang, Mhan-Pyo Yang 충북대학교 동물의학연구소 2013 Journal of Biomedical and Translational Research Vol.14 No.3
A-7-month-old, intact male Shih-Tzu dog was referred with facial dermatitis and stifle pain with 7 days duration. Erythema, hemorrhage, and crusted nodular lesions of the face, swollen eyelids, and otitis externa were observed. A painful response was noted on palpation of the right stifle joint. Impression smears and skin biopsies revealed pyogranulomatous inflammation consistent with canine juvenile cellulitis (CJC). Skin lesions and pain were greatly improved following immunosuppressive corticosteroid therapy. This report firstly describes clinical and histopathological findings as well as treatment responses of CJC in a 7-month-old, domestic dog.
Byeong-Teck Kang,Hee-Myung Park 대한수의학회 2008 Journal of Veterinary Science Vol.9 No.2
The prevalence of feline herpesvirus-1 (FHV-1), feline calicivirus (FCV), and Chlamydophila (C.) felis was studied in cats of an animal shelter in Korea. Total 78 cats without ocular and upper respiratory tract disease were examined. Specimens were obtained from ocular conjunctiva and oropharynx. Using multiplex polymerase chain reaction (PCR) and reverse transcription PCR, three pathogens were simultaneously detected. In examined 78 cats, 49 (63%) cats were positive for FHV-1. However, all specimens were negative for C. felis and FCV. In conclusion, many cats recovered from FHV-1 infection remain subclinical carriers in shelter environment. The prevalence of feline herpesvirus-1 (FHV-1), feline calicivirus (FCV), and Chlamydophila (C.) felis was studied in cats of an animal shelter in Korea. Total 78 cats without ocular and upper respiratory tract disease were examined. Specimens were obtained from ocular conjunctiva and oropharynx. Using multiplex polymerase chain reaction (PCR) and reverse transcription PCR, three pathogens were simultaneously detected. In examined 78 cats, 49 (63%) cats were positive for FHV-1. However, all specimens were negative for C. felis and FCV. In conclusion, many cats recovered from FHV-1 infection remain subclinical carriers in shelter environment.
Idiopathic Vestibular Disease in a Beagle Dog: Clinical Findings and Outcome
Byeong-Teck Kang,Dong-In Jung,Chul Park,Su-Hyun Gu,Hyo-Won Jeon,박희명 한국임상수의학회 2006 한국임상수의학회지 Vol.23 No.3
10-year-old, intact female Beagle dog was presented for examination of acute onset of right-sided headtilt and moderate ataxia. Clinical signs were acutely presented 12 days ago and had been progressively alleviated untilthe admision day. The dog was bright, alert, and responsive. On neurological examinations, mild head tilt to the rightand mild ataxia were noted, thus vestibular disorders were suspected. Central vestibular disease was ruled out basedon the clinical signs, magnetic resonance imaging (MRI), and cerebrospinal fluid (CSF) analysis. Otoscopic examinationshowed that the tympanic membranes were intact and normal in appearance. On radiographic and MR examinations,abnormalities were not found in the tympanic bulla and the petrous portion of the temporal bone. Hypothyroidismwas ruled out by thyroid-stimulation hormone (TSH) stimulation test. Clinical signs were completely disappeared at2 weeks after discharge without any therapy. Thus, the dog was definitively diagnosed as idiopathic vestibular diseasebased on the clinical signs, excluding other causes of vestibular dysfunction, and the alleviation of clinical signs withtime.
Steroid Responsive Tremor Syndrome in a Maltese Dog
Byeong-Teck Kang,Dong-In Jung,Chul Park,김주원,Ha-Jung Kim,Chae-Young Lim,Ki-Jin Ko,Sue-Kyung Cho,So-Young Lee,박희명 한국임상수의학회 2006 한국임상수의학회지 Vol.23 No.3
A 4-year-old, spayed female Maltese dog was presented for evaluation of acute onset of generalized tremor,right-sided head tilt, horizontal nystagmus, and mild ataxia with 4-day duration. However, the dog was bright, alert,and responsive. The neurological examinations revealed that bilateral horizontal-, positional nystagmus, and mild ataxia.Menace responses were also absent in both eyes. Typically, moderate generalized intension tremors were noted in fourlimbs and the head. No abnormalities were found in hemogram, radiography, and magnetic resonance imaging (MRI).ealed a mild nonsuppurative inflammation. Thus, steroidresponsive tremor syndrome (SRTS) was strongly suspected because of its inflammatory and idiopathic features. Thedog excellently responded to immunosuppressive doses of corticosteroid. Therefore, we definitively diagnosed the dogas SRTS based on the exclusion of other causes of the tremor, clinical signs, and response to treatment. This is afirst case report of SRTS in our country and we here describe clinical and neurological features in SRTS.
KANG, Byeong-Teck,KANG, Min-Hee,LIM, Chae-Young,KIM, Dae-Young,PARK, Hee-Myung Japanese Society of Veterinary Science 2011 The Journal of veterinary medical science Vol.73 No.3
<P>A 12-year-old intact male Maltese dog presented with an inguinal mass. Histopathology revealed a grade III mast cell tumor. Computed tomography demonstrated pulmonary and inguinal nodules and masses. Chemotherapy was performed using a vinblastine/prednisone protocol, and the inguinal mass disappeared 5 weeks later. Use of 2-deoxy-2-[<SUP>18</SUP>F]fluoro-D-glucose (<SUP>18</SUP>F-FDG) and <SUB>L</SUB>-[methyl- <SUP>11</SUP>C]methionine (<SUP>11</SUP>C-MET)-positron emission tomography (PET) demonstrated hypermetabolic areas in the lungs and inguinal region one week after initial chemotherapy. The standardized uptake values of <SUP>18</SUP>F-FDG were not different between lung and inguinal lesions; however, the inguinal lesion had a higher <SUP>11</SUP>C-MET standardized uptake value than the lung lesions. The hypermetabolic area was still visible on the second <SUP>18</SUP>F-FDG-PET scan despite the disappearance of the mass. This is the first report of <SUP>11</SUP>C-MET-PET findings associated with a cutaneous mast cell tumor in a dog.</P>
Kang, Byeong-Teck,Kim, Seung-Gon,Lim, Chae-Young,Gu, Su-Hyun,Jang, Dong-Pyo,Kim, Young-Bo,Kim, Dae-Young,Woo, Eung-Je,Cho, Zang-Hee,Park, Hee-Myung Canadian Veterinary Medical Association 2010 The Canadian veterinary journal Vol.51 No.9
<P>This study characterized the [(18)F]2-deoxy-2-fluoro-D-glucose positron emission tomography (FDG-PET) findings of encephalitis in dogs and assessed the role of FDG-PET in the diagnosis of meningoencephalitis. The medical records, magnetic resonance (MR), and FDG-PET images of 3 dogs with necrotizing meningoencephalitis (NME), 1 dog with granulomatous meningoencephalitis (GME), and 1 dog with meningoencephalitis of unknown etiology (MUE) were reviewed. On the FDG-PET, glucose hypometabolism was identified in the dog with NME, whereas hypermetabolism was noted in the dog with GME. The T2-weighted images (WI) and fluid attenuated inversion recovery (FLAIR) images were characterized by hyperintensity, whereas the signal intensity of the lesions on the T1-WI images was variable. The metabolic changes on the brain FDG-PET corresponded well to the hyper- and hypointense lesions seen on the MR imaging. This type of tomography (FDG-PET) aided in the differentiation of different types of inflammatory meningoencephalitis when the metabolic data was combined with clinical and MR findings.</P>
Kang, Byeong-Teck,Jang, Dong-Pyo,Lee, Jong-Hwan,Jung, Dong-In,Gu, Su-Hyun,Lim, Chae-Young,Kim, Young-Bo,Quan, Fu-Shi,Kim, Hyung-Joong,Woo, Eung-Je,Cho, Zang-Hee,Park, Hee-Myung Elsevier 2009 Research in veterinary science Vol.87 No.2
<P><B>Abstract</B></P><P>Proton magnetic resonance spectroscopy (<SUP>1</SUP>H MRS) provides <I>in vivo</I> biochemical information on tissue metabolites. The purpose of this study was to investigate the serial metabolic changes of <SUP>1</SUP>H MRS in the cerebrum of ischemic dogs. An ischemic stroke was induced in five health laboratory beagle dogs by permanent middle cerebral artery occlusion using a silicone plug. <SUP>1</SUP>H MRS was serially performed three times with a 1.5-T MR system: before, three days after and 10days after the stroke. Immunohistochemical staining was performed to determine the expression of neuronal nuclei (NeuN) and glial fibrillary acidic protein (GFAP) at both the ipsilateral and contralateral cerebral cortex. Reduced levels of <I>N</I>-acetyl-asparate (<I>p</I><0.05), choline (Cho), creatine (Cr) and myo-inositol (mI), and a marked increase in the lactate (Lac) level (<I>p</I><0.01) were found at three days after the stroke. At 10days after the stroke, the levels of Lac significantly increased (<I>p</I><0.01); however, the other metabolites were partially elevated. The changes of Cr, Cho and mI were not statistically significant (<I>p</I>>0.05) when the before and after stroke values were compared. There was a significant loss of NeuN and GFAP immunoreactivity at the ischemic core. <SUP>1</SUP>H MRS may be to a useful diagnostic tool for the evaluation of ischemic stroke in dogs.</P>
Kang, Byeong-Teck,Jang, Dong-Pyo,Gu, Su-Hyun,Kim, Young-Bo,Lim, Chae-Young,Lee, Jong-Hwan,Woo, Eung-Je,Cho, Zang-Hee,Park, Hee-Myung American Association for Laboratory Animal Science 2009 Comparative medicine Vol.59 No.1
<P>The purpose of this study was to evaluate the potential efficacy of 3-dimensional time-of-flight magnetic resonance angiography (TOF-MRA) to validate a canine ischemic stroke model. Ischemic stroke was induced through permanent middle cerebral artery occlusion (MCAO) in 5 healthy Beagle dogs. T2-turbo spin echo images and TOF-MRA were obtained with a 1.5-T magnetic resonance system before and 3 and 10 d after MCAO. In 3 dogs, angiograms of the brain obtained at 3 d after MCAO showed complete occlusion of the MCA; in addition, T2 hyperintensities were present unilaterally in the striatocapsular and cerebral cortex lesions. Partial occlusion of the proximal part of the MCA was identified in the 2 remaining dogs, with T2 hyperintensities present only in the striatocapsular lesions. The occluded sites were confirmed at necropsy. The results of this study demonstrate the potential of TOF-MRA to provide a detailed description of intracranial arteries and aid in the evaluation of flow impairment in a canine MCAO model.</P>
KANG, Byeong-Teck,PARK, Chul,YOO, Jong-Hyun,GU, Su-Hyun,JANG, Dong-Pyo,KIM, Young-Bo,WOO, Eung-Je,KIM, Dae-Young,CHO, Zang-Hee,PARK, Hee-Myung Japanese Society of Veterinary Science 2009 The Journal of veterinary medical science Vol.71 No.10
<P>A 10-year-old, neutered male, Maltese dog presented with a three week history of intention tremor, right hind limb rigidity, poor coordination, and occasional circling to the left. On magnetic resonance imaging (MRI) of the brain, a mass was identified in the right occipital lobe and cerebellum. Three weeks after the initial MRI scan, we performed an <SUP>18</SUP>F-fluorodeoxyglucose positron emission tomography (FDG-PET) of the brain. The FDG-PET demonstrated areas of hypermetabolism in the right occipital lobe, cerebellum, pons, and medulla oblongata. When the standardized uptake value was calculated, the hypermetabolic lesion was higher than the gray matter values. The anatomical location of the hypermetabolic lesion was more precisely identified by the PET-MRI fusion images. The dog was definitively diagnosed as a primary histiocytic sarcoma of the brain. This is the first report of PET findings of an intracranial histiocytic sarcoma in a dog.</P>
Kang, Byeong-Teck,Park, Chul,Jung, Dong-In,Yoo, Jong-Hyun,Kim, Ju-Won,Gu, Su-Hyun,Jeon, Hyo-Won,Kim, Jung-Hyun,Woo, Eung-Je,Park, Hee-Myung The Korean Society of Veterinary Science 2007 大韓獸醫學會誌 Vol.47 No.2
A 14-month-old, neutered female Miniature Pinscher was referred due to severe renal failure. The dog was treated with hysterotomy and followed by ovariohysterectomy (OHE) 6 days before the presentation. Excretory urographic and ultrasonographic studies revealed bilateral hydroureter and hydronephrosis. Postmortem necropsy revealed that ligatures were placed around the caudal portion of bilateral ureters in front of entrance into the bladder. This case shows that identifying and protecting the ureters are important during hysterotomy with OHE as well as OHE.