Intrapancreatic Ectopic Splenic Tissue in Dogs and Cats
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Choristoma
Clinical Significance
Accessory spleen
An epidermoid cyst of accessory spleen, a rare condition may present as pseudocyst of pancreas and other cystic tumors of the pancreas. This case report along with the review of literature attributes some clinical features and investigative pattern to differentiate between epidermoid cyst of accessory spleen and other cystic tumor of pancreas.
Epidermoid cyst
Accessory spleen
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Pancreases from 8 patients with trisomy 13 were studied. Ectopic splenic tissue was present in 6: 3 had accessory spleens and ectopic splenic tissue embedded in the pancreas, one had intrapancreatic splenic tissue without an accessory spleen, and one had an accessory spleen without intrapancreatic splenic tissue. The intrapancreatic splenic tissue was multiple, generally poorly or nonencapsulated, and contained pancreatic acini, islets of Langerhans, and ducts lined by tall columnar epithelium with goblet cells. The rest of the pancreas in these and other cases of trisomy 13 had microcyst formation and focal proliferations of small ducts similar to those seen in the splenic tissue. This constellation of features appears to be distinctive of trisomy 13.
Accessory spleen
Choristoma
Trisomy
Ectopic pancreas
Cuboidal Cell
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Choristoma
Accessory spleen
Abnormality
Splenic disease
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Records of all cats that had undergone exploratory coeliotomy at the University of Edinburgh during the period November 1995 to July 2002 were reviewed. Seventy records were retrieved. There were 30 cats in which infection or inflammatory disorders predominated, 17 cats with neoplasia, three cats with trauma and 20 cats with other disorders. Exploratory coeliotomy was performed for diagnostic purposes in 28 cats (40 per cent), treatment in 34 cats (49 per cent) and for diagnosis and treatment in eight cats (11 per cent). Methods of intraoperative diagnosis included incisional biopsy of abdominal organs (52 cats), cytology (two cats), microbiology (17 cats) and gross appearance (17 cats). Fifty-eight cats (83 per cent) survived the hospitalisation period. Complications occurred in 18 cats (26 per cent) and were related to anaesthesia (four cats), the underlying disease process (15 cats), surgery (five cats) and were undetermined in one cat.
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Abstract The aim of this study was to determine whether behaviour problems in indoor cats depend on the number of cats in a household or rearing one or more cats in a household together with a dog. The study was carried out on animals which were divided for the purpose of this study into 4 groups: (1) households with one cat; (2) households with two cats; (3) households with three or more cats; (4) households with one or more cats and a dog. Altogether 91 cats were included in the study. The practical part of this investigation was based on a questionnaire. It was observed that the probability of behaviour problems was not related unambiguously to the number of cats in a household or the company of a dog. The percentage of the occurrence of changed behaviour did not differ significantly between the groups.
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Objective:To explore the CT image characteristics of lesions at hilum of spleen and tail of pancreas so as to improve the diagnosis of these diseases.Methods:CT appearances of 14 cases with lesions at hilum of spleen and tail of pancreas were analysed correlatively with pathological results and clinical symptoms.14 cases all underwent plain CT scan and contrast-enhanced CT scan,proceeding with MPR.Results:Fourteen lesions one patient with neuroendocrine carcinoma of pancreatic tail,one patient with paraganglioma and one patient with solid pseudopapillary tumor of pancreatic tail,two patients with cystadenosarcoma of pancreas,two patients with pseudocyst of pancreas,three patients with lymphoma of pancreas,two patients with malignant interstitialoma of stomach,and two patients with leiomyosarcoma of stomach.In this group,85.7% of lesions were malignant and 14.3% were benign.The coincidence and misdiagnosis rate of this group was 64.3% and 35.7% respectively.Conclusion:Accurate diagnosis of lesions of hilum of spleen and tail of pancreas can be reached only by strictly analyzing the imaging characteristics and clinical manifestations.
Hilum (anatomy)
Ectopic pancreas
Accessory spleen
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Abstract SARS-CoV-2 is the causative agent of COVID-19 and responsible for the current global pandemic. We and others have previously demonstrated that cats are susceptible to SARS-CoV-2 infection and can efficiently transmit the virus to naïve cats. Here, we address whether cats previously exposed to SARS-CoV-2 can be re-infected with SARS-CoV-2. In two independent studies, SARS-CoV-2-infected cats were re-challenged with SARS-CoV-2 at 21 days post primary challenge (DPC) and necropsies performed at 4, 7 and 14 days post-secondary challenge (DP2C). Sentinels were co-mingled with the re-challenged cats at 1 DP2C. Clinical signs were recorded, and nasal, oropharyngeal, and rectal swabs, blood, and serum were collected and tissues examined for histologic lesions. Viral RNA was transiently shed via the nasal, oropharyngeal and rectal cavities of the re-challenged cats. Viral RNA was detected in various tissues of re-challenged cats euthanized at 4 DP2C, mainly in the upper respiratory tract and lymphoid tissues, but less frequently and at lower levels in the lower respiratory tract when compared to primary SARS-CoV-2 challenged cats at 4 DPC. Histologic lesions that characterized primary SARS-CoV-2 infected cats at 4 DPC were absent in the re-challenged cats. Naïve sentinels co-housed with the re-challenged cats did not shed virus or seroconvert. Together, our results indicate that cats previously infected with SARS-CoV-2 can be experimentally re-infected with SARS-CoV-2; however, the levels of virus shed was insufficient for transmission to co-housed naïve sentinels. We conclude that SARS-CoV-2 infection in cats induces immune responses that provide partial, non-sterilizing immune protection against reinfection.
Respiratory tract
Feline calicivirus
Pandemic
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Choristoma
Clinical Significance
Accessory spleen
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