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1.
Meningiomas are one of the most common nervous system tumors in dogs. They are mostly solitary, benign, intracranial tumors of the transitional type. Tentative diagnosis can usually be made on historical data, clinical and neurological signs, and radiographs, with an antemortem diagnosis confirmed by exploratory surgery and histologic evaluation of biopsy. The literature contains many reports of the gross, histological and ultrastructural morphology of canine meningiomas, but little on the cytologic features of these tumors. This report describes the cytologic appearance of an intracranial meningioma in a 9-year-old Miniature Schnauzer.  相似文献   

2.
Meningiomas are one of the most common nervous system tumors in dogs. They are mostly solitary, benign, intracranial tumors of the transitional type. Tentative diagnosis can usually be made on historical data, clinical and neurological signs, and radiographs, with an antemortem diagnosis confirmed by exploratory surgery and histologic evaluation of biopsy. The literature contains many reports of the gross, histological and ultrastructural morphology of canine meningiomas, but little on the cytologic features of these tumors. This report describes the cytologic appearance of an intracranial meningioma in a 9-year-old Miniature Schnauzer.  相似文献   

3.
The clinical, electrocardiographic, angiographic, radiological and postmortem features of a case of pseudo truncus arteriosus in an 8-month-old crossbred Labrador puppy are described.  相似文献   

4.
CASE HISTORY: A routine ultrasonographic examination for pregnancy diagnosis in a 3-year-old ewe revealed a normal embryo located in the uterine cavity and an abnormal mass located in the abdomen. At the time of examination, the ewe was 4.5?months pregnant, but 10?months previously she had undergone a caesarean section due to dystocia.

CLINICAL FINDINGS: The abnormal mass (12?cm × 8?cm) was located outside the uterine cavity; it was anechoic at the periphery, and in the centre there was an echogenic embryo-like structure. Exploratory laparotomy was performed, which revealed an ectopic pregnancy through the caesarean scar.

TREATMENT: The ectopic foetus was excised and the caesarean scar was repaired. The ewe made a complete recovery and the intrauterine pregnancy was completed to full-term, resulting in the birth of a healthy female lamb 35?days after the removal of the ectopic foetus.

CLINICAL RELEVANCE: Ectopic pregnancies have previously been described in ewes. As far as the authors are aware, this is the first report of an ectopic pregnancy through a caesarean scar in sheep or any other farm animal species.  相似文献   

5.
As a complement to the concentration on negative states in welfare science, scientists are increasingly considering the desirability of measuring positive outcomes. Since evaluation of an animal's mental state is a critical goal for welfare assessment, considerations of both positive feelings (what an animal "likes") and resources that an animal is motivated to obtain (what an animal "wants") appear to be important. However, since animals may make choices that are not in their long-term interests, an assessment of positive feelings and resources should include an evaluation of any associated actual or potential harms, such as fear, distress, pain, injury and disease. A review of current evidence suggests that positive welfare can be best assessed by evaluation of resources (i.e. inputs) that are valued by an animal and by positive outcomes such as behavioural responses, influences on cognitive processes and physiological markers. Since negative welfare is often inversely correlated with positive welfare measures, current welfare policy will have been achieving some positive welfare outcomes, however the explicit inclusion of positive welfare outcomes in the framework allows for analyses that are both deeper and more in tune with commonsense, which can hopefully yield more objective policies.  相似文献   

6.
Atypical myopathy (AM) is an acute rhabdomyolysis syndrome that occurs at irregular intervals in grazing equines. An increasing number of outbreaks have been reported in recent years, including some from countries where the disease has not previously been diagnosed. In this review, clinical and other details of outbreaks of AM are analysed to better define its epidemiological profile. Potential aetiologies are discussed, the short clinical course of AM is described and the main biochemical and pathological findings are considered. Recommendations for medical management are suggested, based on a review of clinical reports. Biochemical and histopathological findings have been integrated in order to characterise the physiopathology of AM. There is an ongoing requirement to record new cases of this syndrome, ideally through an epidemiological network.  相似文献   

7.
Hepatic myelolipoma incarcerated in a peritoneopericardial diaphragmatic hernia was diagnosed in an 11-year-old, desexed female Persian cat. The cat was initially referred for investigation of tachypnoea and dyspnoea. Peritoneopericardial diaphragmatic hernia is a common incidental finding in cats and is usually asymptomatic. Myelolipoma is an extremely rare benign tumour, composed of extramedullary haematopoietic cells and adipose tissue. Myelolipomas are hypothesised to result from metaplastic alteration, rather than a neoplastic process, although this theory cannot be substantiated. The present case is only the fourth report of such an unusual occurrence in cats and displays significant differences to previous reports. Hepatic entrapment and burgeoning of the mass within the pericardial sac resulted in cardiac tamponade and overt signs of right-sided cardiac failure. Surgical intervention was successful and despite concerns regarding the cat's clinical presentation and the gross appearance of the lesion(s), a good long-term outcome is anticipated.  相似文献   

8.
Redgut is a condition of sheep characterised by sudden death. Post-mortem findings are reddened small and large intestines, which are usually displaced. Sheep are predisposed to the condition by a combination of circumstances, including a small rumenoreticulum because of the nature of the feed (usually highly digestible forage), and increased large intestinal size and function. To accommodate this, and because there is not a large rumenoreticulum to stabilise the gut position, the intestinal mass moves to an unstable position in the peritoneal cavity. Some unknown event precipitates a further change in intestinal position, resulting in accidental torsion of the intestinal mass, with resultant obstruction of the mesenteric blood vessels and death from shock. The condition can be prevented by careful attention to feeding regimes that prevent development of the predisposing feature of small forestomachs and an oversized large intestine, resulting in a displaced intestinal mass. This is achieved by intermittent grazing of dangerous pastures.  相似文献   

9.
Biliary tumors are rarely diagnosed in rabbits, and there are very few published case reports of this disease within this group of animals. This case involves an approximately 6-year-old spayed female pet rabbit that was referred for an abdominal mass noted on survey full-body radiographs obtained during an examination after presenting for acute onset anorexia. Otherwise, the patient had an unremarkable history, and physical examination abnormalities were limited to a slightly distended abdomen. Laboratory evaluation revealed an isolated elevation in gamma-glutamyl transpeptidase. Ultrasonography documented a 5.4-cm multicystic, intrahepatic mass with hyperechoic septations. The mass was surgically resected and described histopathologically as a proliferation of ectatic duct structures with a simple epithelial lining, supporting a diagnosis of biliary cystadenoma. The rabbit recovered without incident and was doing well 15 months postsurgery. The case is presented with a review of all reported cases and discussion of the potential origins of this unusual tumor in the rabbit. Surgery is recommended in rabbits that are diagnosed with a biliary tumor.  相似文献   

10.
Brucella are invasive gram-negative bacteria that multiply and survive within eukaryotic cells causing brucellosis. Syrian (and Middle East) health and economy sectors are still affected by this disease causing a serious national problem that needs to be solved. Here, a strategy was developed to introduce a new generation of binders, known as Nanobodies (Nbs) in our combat against Brucella. These Nbs, recombinant single-domain variable fragments derived from camelid heavy-chain antibodies are very stable and highly soluble, making them a useful tool in numerous biotechnological and medical applications. In this work and without having access to purified antigens (Ags), a camel was immunised successfully with heat-killed Brucella melitensis strain Riv1 as demonstrated by the high titer of Ag-specific heavy-chain antibodies in the serum. Lymphocytes of the immunised camel were isolated and their Nb genes were cloned in a relatively large library of 10(8) individual transformants, of which 81% contained an insert with the proper size of a Nb gene. Phage display expression of the Nbs from this library and pannings on the Brucella lysate resulted in a clear enrichment of three distinct Nb-displaying phages (phage-Nbs), referred to as NbBruc01, 02 and 03, with specificity for Brucella. Producing these binders in a pure, soluble form, as well as identifying their specific targets, which are likely to be immunodominant Ags in Brucella, is expected to open wide perspectives for following the vaccination, diagnosis and treatment of brucellosis.  相似文献   

11.
A 16 year old Thoroughbred mare was presented to the Ontario Veterinary College because of an acute episode of colic. An exploratory laparotomy was performed and a neurofibroma was identified and successfully removed from the small colon. The clinical and pathological features of this case are discussed.  相似文献   

12.
A seven-month-old Rottweiler was referred for a diagnosed femoral neck fracture and a suspected vertebral fracture. The simplified neurological examination revealed an acute paraplegia. A discospondyilitis associated with a pathologic fracture of Th11 and a spinal compression, and a haematogenous epiphysitis of the femoral neck were diagnosed based on radiographic and computed tomographic examinations. The vertebral fracture was stabilised using screws and polymethylmetacrylate with gentamycin by a lateral intercostal approach. The dog was able to walk seven days later. A femoral head and neck ostectomy was performed two weeks later. Staphylococcus intermedius was isolated from both sites, which confirmed the diagnosis. The dog was treated with cephalexin (30 mg/kg/d) for six weeks. A telephone interview with owners indicated that no more clinical signs were present four months after the second surgery. Discospondylitis associated with haematogenous osteomyelitis has only been reported in two cases. Paraplegia is an unusual clinical presentation for discospondylitis. The lateral approach (which allowed a direct access to the infected site) and the technique (screws associated with antibiotic-impregnated cement) are unique for surgical treatment of discospondylitis. Although applying cement to an infected area may pose a risk, antibiotic-loaded cement is successfully used in the treatment of chronic osteomyelitis in humans.  相似文献   

13.
Signs of depression, hyperphosphatemia, azotemia, high anion gap metabolic acidosis, and renal failure developed in an adult cat following administration of an excessive dose of a phosphate-containing urinary acidifier. After extracellular fluid volume expansion, diuresis, and administration of a phosphate binder, serum phosphorus concentration returned to normal in 12 hours; the cat recovered fully. The urinary acidifier had been given as part of treatment for a urinary tract infection. Findings suggest that phosphate-containing urinary acidifiers should be administered cautiously because, like other sources of phosphate, they are capable of causing life-threatening metabolic disturbances.  相似文献   

14.
A 7-year-old Pointer was referred with a transverse fracture of the 12th coccygeal vertebra. A 4-hole 2-mm finger plate was applied to the dorsolateral aspect of the vertrebra, and the tail was placed in a protective splint. This case presents an alternate method of fixation of coccygeal fractures, and is recommended when the nerve and blood supplies to the tail are intact, and when a cosmetic appearance with minimal callus formation is desired.  相似文献   

15.
A beagle puppy was presented with clinical signs indicative of a cerebellar disease. Histopathological evaluation of the cerebellum revealed a diffuse degenerative cortical lesion. The clinical history and the histopathological findings are consistent with a neonatal cerebellar abiotrophy. Furthermore, the breeding history supports the hypothesis of an inherited genetic disorder that is, most likely, an autosomal recessive trait.  相似文献   

16.
Mares regularly have an enlarged ovary. The main causes are haematomas, anovulatory follicles, abscesses, and neoplasia. The granulosa-theca-cell tumour is by far the most common neoplasia of the ovary (about 97%) and accounts for 2.5% of all equine tumours. In this article the differential diagnosis of an enlarged ovary and the background of granulosa-theca cell tumours are reviewed. A case is described of a mare with a very large granulosa-theca cell tumour in the left ovary, which was discovered 1 month after delivery of a healthy foal. This case is special not only because the tumour was enormous (diameter 60 cm) but also because the contralateral ovary was functional and there were no behavioural changes. The fact that a haematoma had been found 2 years earlier made the diagnosis even more difficult.  相似文献   

17.
This report demonstrates the feasibility of an elective ovariosalpingohysterectomy by natural transluminal endoscopic surgery (NOTES) hybrid technique in a dog. A 5-mm abdominal cannula was used in combination with a 10-mm cannula (vaginal access). The patient's quick recovery and the absence of complications are indicative of the effectiveness of this surgery.  相似文献   

18.
Recurrent peritonitis caused by Clostridium limosum was associated with a mast cell tumor of a cranial mesenteric lymph node in a dog. The diagnosis of mast cell tumor was obscured because of the peritonitis and the appearance and location of the mass, which resembled an abscess. Since clostridial infections frequently are associated with neoplasia in man, veterinarians should be aware of the possibility of a similar relationship in animals.  相似文献   

19.
Canine brucellosis is rare in Canada. This report describes an outbreak of Brucella canis infection within a kennel, emphasizing diagnostic and pathologic findings. Gender differences are described. The progestational, nongravid uterus, female spleen, and prostate gland are consistent sites of bacterial isolation.  相似文献   

20.
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