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Spośród nowotworów gałki ocznej u psów i kotów stosunkowo częstymi zmianami są te, które wywodzą się z tkanki barwnikotwórczej. Do najważniejszych nowotworów w tej lokalizacji zalicza się melanocytomy rąbka rogówki, melanocytomy błony naczyniowej oraz rozsiane czerniaki tęczówki u kotów. Zmiany charakteryzują się różnym pochodzeniem, obrazem histologicznym, a także zachowaniem biologicznym. Poza obecnością...
Atrial septal defects (ASDs) are a group of congenital heart defects which consist in an abnormal formation of the atrial septum and allow blood to flow directly between the atria. A one-month-old female lamb was presented with chronic progressive dyspnea. Clinical examination, X-ray and echocardiography revealed a congestive heart failure due to a large septal defect with a pathologic right-left...
Physical and functional abnormalities of the lids or adnexal ocular structures may result in abnormalities of the cornea and subsequently vision. Cancer begins when normal cells start to change and grow uncontrollably, forming a mass called a tumor. Eyelid tumors can be either benign or malignant. The most common malignant eyelid tumors include basal cell carcinoma, sebaceous gland carcinoma, squamous...
The aim of this study was to estimate the prevalence of histopathological lesions in the different organs in relation to the commercial-type and the age of birds (i.e. broiler chickens and layers). During the period 1999-2010 a total of 189 cases was submitted to the Division of Animal Pathomorphology, Department of Pathology and Veterinary Diagnostics at WULS. Most cases were found in broiler chickens...
Lymphoma is one of the most common malignant tumours occurring in dogs. Since there is a constant need for new, more comprehensive laboratory diagnostic tools which permit the precise determination of many tumour-related factors we decided to verify whether the use of microarray analysis could be helpful in classifying lymphomas. The study was performed on samples collected from 7 dogs in which multicentric...
Histiocytic sarcoma is a malignant neoplastic proliferation of atypical histiocytes with tendency to spread, characterized by fast progression to disseminated form - disseminated histiocytic sarcoma. Cytopathology is a low, invasive, cheap, and quick method of diagnosis commonly used in veterinary oncology. The aim of the presented study was description of cases of visceral histiocytic sarcomas in...
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