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Fulminant multicentric osteosarcoma with systemic metastasis in a dog
2017
Lee, J.H., Seoul National University, Seoul, Republic of Korea | Go, D.M., Seoul National University, Seoul, Republic of Korea | Lee, S.H., Seoul National University, Seoul, Republic of Korea | Lee, G.G., Seoul National University, Seoul, Republic of Korea | Choi, M.C., Seoul National University, Seoul, Republic of Korea | Youn, H.Y., Seoul National University, Seoul, Republic of Korea | Kim, D.Y., Seoul National University, Seoul, Republic of Korea
A 15-year-old castrated mixed breed dog presented due to a 5-month history of cough and difficulty in ambulation. Necropsy showed multiple periosteal and intramedullary infiltrative masses in the appendicular skeleton. In addition, single and multiple neoplastic nodules were observed in several organs, including the lungs, liver, kidney, and heart. Microscopically, several skeletal neoplastic masses and nodules in the parenchymal organs revealed similar changes. The neoplastic cells were spindle- to polygonal-shaped with prominent osteoid production and occasional cartilaginous and bone formation. Based on the gross findings and histopathology results, the case was diagnosed as multicentric osteosarcoma with systemic metastases.
Afficher plus [+] Moins [-]Ultrasonographic assessment of transitional cell carcinoma of the urinary bladder in dogs: a perspective of tumor size change
2017
Kim, S., Seoul National University, Seoul, Republic of Korea | Kim, Y., Seoul National University, Seoul, Republic of Korea | Kim, W., Seoul National University, Seoul, Republic of Korea | Choi, M., Seoul National University, Seoul, Republic of Korea | Yoon, J., Seoul National University, Seoul, Republic of Korea
Study purposes were to evaluate ultrasonographic characteristics of transitional cell carcinoma (TCC) and quantitate bladder tumor size in dogs. Heterogeneous mass, wall involvement, and broad-based attachment were significantly associated with TCC, but not prominently the trigone region. Mass size evaluation revealed a significant correlation between progressive disease (PD) in TCC patients with piroxicam therapy. Largest diameter of target lesion/ body weight (cm/kg) ratio showed a high mean value in PD. A value greater than 0.3 was associated with PD with 83% sensitivity and 66% specificity. The results suggest that ultrasonography can provide evidence for diagnosing and predicting a prognosis for TCC.
Afficher plus [+] Moins [-]Detection and molecular characterization of Hepatozoon canis, Babesia vogeli, Ehrlichia canis, and Anaplasma platys in dogs from Metro Manila, Philippines
2017
Adao, D.E.V., University of the Philippines Diliman, Quezon City, Philippines | Herrera, C.M.T., University of the Philippines Diliman, Quezon City, Philippines | Galarion, L.H., University of the Philippines Diliman, Quezon City, Philippines | Bolo, N.R., University of the Philippines Diliman, Quezon City, Philippines | Carlos, R.S., Carlos Veterinary Clinic, Paranaque City, Philippines | Carlos, E.T., Makati Dog and Cat Hospital, Makati City, Philippines | Carlos, S.S., Makati Dog and Cat Hospital, Makati City, Philippines | Rivera, W.L., University of the Philippines Diliman, Quezon City, Philippines
The study of canine vector-borne diseases in the Philippines started in the 1970s but only gained interest in the past decade. Characterization of such diseases in the Philippines remains incomplete, thus, it is necessary to obtain additional information on the prevalence and diversity of canine tick-borne diseases in the country. In this study, blood samples were obtained at two veterinary clinics in Metro Manila, Philippines from 114 dogs suspected of having canine tick-borne pathogens. Polymerase chain reaction (PCR) was performed on whole blood DNA extracts followed by sequencing, and the following pathogens were detected: Hepatozoon (H.) canis (5.26%), Babesia (B.) vogeli (5.26%), Ehrlichia (E.) canis (4.39%), and Anaplasma platys (3.51%). Additionally, a set of multiplex PCR primers were developed to detect H. canis, Babesia spp. (B. canis and B. vogeli), and E. canis in canine blood. Multiplex and conventional single-reaction PCR results for the 114 dog blood samples were similar, except for one H. canis sample. Multiplex PCR is, therefore, a useful tool in screening infected dogs in veterinary clinics. This study’s results, together with those of previous studies in the country, show that canine vector-borne pathogens are an emerging veterinary concern in the Philippines.
Afficher plus [+] Moins [-]Virtual computed tomographic bronchoscopy: normal bronchial anatomy in six dogs
2017
Oh, D., Seoul National University, Seoul, Republic of Korea | Choi, M., Seoul National University, Seoul, Republic of Korea | Yoon, J., Seoul National University, Seoul, Republic of Korea
The aim of this study was to examine normal bronchi in dogs by using virtual bronchoscopy (VB) and to evaluate the utility of VB in clinical practice. The bronchi of six dogs without tracheobronchial disease were visualized by VB. Airways from the tracheal bifurcation to the lobar bronchi were well visualized in all dogs. Segmental and subsegmental bronchi were also well identified, but the degree and number of those varied with dog size. The mean numbers of segmental and subsegmental bronchi identified in the six dogs were 41.83 and 50.17, respectively, whereas, the mean numbers in medium- and large-sized dogs were 55.00 and 82.67, respectively, and in small-sized dogs, the means were 28.67 and 17.67, respectively. Although there were size-dependent differences in VB visualization of the bronchi, it was possible to identify peripheral airways to the subsegmental bronchi level, which can rarely be accomplished via conventional bronchoscopy. VB is the noninvasive method that can be used to examine bronchial anatomy, and our results suggest that VB can be useful for evaluating bronchi, including segmental and subsegmental ones that cannot be examined routinely by conventional bronchoscopy. Thus, VB has potential as an alternative to conventional bronchoscopy in the examination of bronchi in dogs.
Afficher plus [+] Moins [-]Dehydroepiandrosterone and cortisol concentrations in the cerebrospinal fluid of dogs
2017
Mongillo, P., University of Padova, Legnaro, Italy | Bernardini, M., University of Padova, Legnaro, Italy | Prana, E., University of Padova, Legnaro, Italy | Balducci, F., Portoni Rossi Veterinary Hospital, Zola Predosa, Italy | Gabai, G., University of Padova, Legnaro, Italy | Marinelli, L., University of Padova, Legnaro, Italy
Concentrations of cortisol, dehydroepiandrosterone and dehydroepiandrosterone-sulfate were measured by performing radioimmunoassay of the cerebrospinal fluid of 68 dogs diagnosed with idiopathic epilepsy or inflammatory, degenerative, or non-neurological disease. No steroid concentration differences were found among diagnoses. Dehydroepiandrosterone and dehydroepiandrosterone-sulfate concentrations were higher in males than in females and dehydroepiandrosterone-sulfate decreased with increasing age. No sex or age effects were observed on cortisol or hormone ratios. Although limited to a relatively small sample, our results show sex- and age-dependent variations in these neurosteroid concentrations in cerebrospinal fluid. The role of such variations in the pathophysiology of the dog brain warrants further investigation.
Afficher plus [+] Moins [-]Prolonged reflex bradycardia after occlusion of patent ductus arteriosus with an Amplatz canine duct occluder in a dog
2017
Ro, W.B., Konkuk University, Seoul, Republic of Korea | Kang, M.H., Konkuk University, Seoul, Republic of Korea | Lee, C.M., Konkuk University, Seoul, Republic of Korea | Kim, S.G., Konkuk University, Seoul, Republic of Korea | Park, H.M., Konkuk University, Seoul, Republic of Korea
A 9-month-old intact male Maltese dog (1.52 kg) was diagnosed with a patent ductus arteriosus (PDA). Transcatheter occlusion of the PDA was performed by using the Amplatz canine duct occluder (ACDO). After occlusion, reflex bradycardia occurred and lasted for at least 15 h with normal systolic arterial pressure and slightly increased diastolic arterial pressure. The bradycardia slowly resolved, and the heart rate was normal in re-examinations after 7 and 30 days. This is the first case of reflex bradycardia after ACDO implantation, in which the bradycardia continued for a long time, even after recovery from anesthesia.
Afficher plus [+] Moins [-]Diagnostic imaging of congenital pulmonary aplasia in a dog
2017
Kim, S., Chungnam National University, Daejeon, Republic of Korea | Choi, H., Chungnam National University, Daejeon, Republic of Korea | Lee, Y., Chungnam National University, Daejeon, Republic of Korea
A 2-year-old, female Pomeranian dog was referred for dyspnea. Thoracic radiographs revealed left-sided mediastinal shift, increased soft tissue opacity in the caudal aspect of left thorax with loss of the left diaphragmatic silhouette, and dorsal elevation of mediastinal structures and heart from the sternum by lung tissue. The left main bronchus was visualized as an air-bronchogram and observed to abruptly discontinue at the level of the 10th rib. Thoracic computed tomography (CT) revealed absence of the left lung parenchyma and left pulmonary vessels with a rudimentary left main bronchus. The case was congenital pulmonary aplasia diagnosed via radiography and CT.
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