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Wm Kirk Suedmeyer Marlys L Houck John Kreeger 《Journal of zoo and wildlife medicine》2003,34(1):96-99
Fibroblast cultures of a skin biopsy from an adult intact male Siberian tiger (Panthera tigris altaica) revealed an abnormal standard and G-banded karyotype diploid chromosome number of 2n = 39 XXY due to an extra sex chromosome as opposed to the expected 2n = 38 XY. The tiger was euthanatized 1 yr later due to acute multifocal intervertebral disc disease. Histopathology of the reproductive tract demonstrated a paucity of seminiferous tubules and these were devoid of spermatagonia. An increase in fibrous connective tissue was noted in sections of the prostate and epididymis, and expansion of the fibrous interstitium was observed in the testes. 相似文献
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A 13-yr-old male Alpaca (Lama pacos) presented with multiple ovoid, well-circumscribed, nonulcerated intradermal masses. Individual masses measured 1-4 cm in diameter, and the overlying skin was alopecic. Several of the masses were surgically removed and evaluated microscopically. Histopathologic evaluation demonstrated multiple dermal cysts lined by neoplastic follicular epithelium. The cysts were filled with multiple layers of lamellar keratin and lined by abortive inner and outer root sheaths exhibiting cellular atypia, supporting the diagnosis of trichoepitheliomas. No additional treatment was initiated, and the alpaca continues to do well. 相似文献
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Wm Kirk Suedmeyer Carolyn Henry Dudley McCaw Magalie Boucher 《Journal of zoo and wildlife medicine》2007,38(4):597-600
A 5-yr-old female African rose-ringed parakeet (Psittacula krameri) presented with an ulcerated mass in the medial postpatagial area of the right wing. Biopsy specimens of the mass demonstrated a well-differentiated squamous cell carcinoma. Photodynamic therapy resulted in tumor cell necrosis and initial reduction in tumor burden, but complete remission was not achieved. Based on this and other avian cases, it appears that photodynamic therapy designed to eradicate squamous cell carcinoma in avian species using protocols modeled after canine, feline, and human photodynamic therapy protocols may not be useful. It is hypothesized that differences in light penetration, photosensitizing agent pharmacokinetics, and wound healing properties in avian species necessitate alteration of photodynamic therapy protocols if this treatment modality is to be effective in avian oncology. 相似文献
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Three adult female North American river otters (Lutra canadensis) demonstrated severe anesthetic complications shortly after being immobilized for dental procedures. Two of the animals died shortly after anesthesia, and the third otter died 2 mo after immobilization. All three animals were diagnosed with pulmonary silicosis on the basis of histopathology, polarized light microscopy, and mass spectrometry. One animal also had primary pulmonary bronchoalveolar carcinoma. Significant concurrent disease was not found in other organs. Analysis of the lung tissue by laser microbe mass spectrometry confirmed the presence of an aluminum silicate in the lung tissue associated with insulation material used in nest box construction. 相似文献
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Backues K Clyde V Denver M Fiorello C Hilsenroth R Lamberski N Larson S Meehan T Murray M Ramer J Ramsay E Suedmeyer K Whiteside D;Executive Committee American Association of Zoo Veterinarians 《Journal of zoo and wildlife medicine》2011,42(1):176-192
These guidelines for veterinary medical care and veterinary hospitals are written to conform with the requirements of the Animal Welfare Act, which states that programs of disease prevention and parasite control, euthanasia, and adequate veterinary care shall be established and maintained under the supervision of a veterinarian. Ideally the zoo and aquarium should be providing the best possible veterinary medical care for the animals in their collections. Many of these animals are rare and endangered and the institutions should endeavor both to provide for the long term health and well being of these animals and to advance the field of non-domestic animal medicine. It is hoped that this publication will aid in this process. 相似文献
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W K Suedmeyer L S Hitchcock J D Bonagura J Kreeger T Smith 《Journal of zoo and wildlife medicine》2000,31(3):408-411
A 9-mo-old female blue duiker (Cephalophus monticola) weighing 3.9 kg was diagnosed with a cardiac murmur during quarantine examination. Evaluation of the heart by auscultation, electrocardiography, two-dimensional echocardiography, and Doppler color-flow echocardiography revealed a restrictive outlet ventricular septal defect with left atrial and left ventricular dilation. Trivial mitral, tricuspid, and aortic regurgitation was also noted. Though the duiker was clinically asymptomatic at the time of cardiac evaluation, it was found dead 1 wk later. The cause of death was not determined. 相似文献