首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献，搜索用时 15 毫秒
1.
This report documents the first case of gossypiboma (textiloma) identified within the thorax of a dog. CT findings, surgical removal and histopathology are described. Intra‐thoracic gossypiboma has not previously been reported in dogs and is rarely reported in the human medical literature, where it is most commonly associated with previous cardiac or pulmonary surgery. This dog had previously had a thoracotomy for attempted surgical correction of a persistent right aortic arch and left ligamentum arteriosum 6 years prior to presentation. A brief review of the previous literature and recommendations for prevention of this condition are provided.  相似文献   

2.
Granulomatous disease associated with Bartonella infection in 2 dogs   总被引：2，自引：0，他引：2  
Shortly after removal of an engorged tick from the left ear, a 4-year-old Greyhound was referred for evaluation of fever and a rapidly enlarging mass in the region of the left submandibular lymph node. Histopathologic evaluation of the lymph node resulted in a diagnosis of severe granulomatous lymphadenitis. An 11-year-old mixed-breed dog was referred for evaluation of a 6-week history of serous nasal discharge. Histologic examination of a surgical biopsy from a nasal mass indicated multifocal granulomatous inflammation with fibrosis. Serum samples obtained from both dogs were reactive by immunofluorescent assay to Bartonella vinsonii subsp. berkhoffii antigens (reciprocal titers of 128). Although Bartonella organisms were not isolated by lysis centrifugation blood culture, Bartonella DNA was amplified from tissue samples obtained from each dog (lymph node biopsy from dog 1 and nasal biopsy from dog 2) using primers that amplify a portion of the 16S rRNA gene followed by Southern blot hybridization using a genus-specific probe. Additionally, restriction fragment length polymorphism (RFLP) analysis of a Bartonella-specific citrate synthase gene product obtained from dog 2 resulted in a restriction pattern identical to B. vinsonii subsp. berkhoffii. This is the 1st report of granulomatous disease in dogs associated with Bartonella infection.  相似文献   

3.
Abstract: An 8‐year‐old, spayed female Labrador Retriever was presented for evaluation of unwillingness to exercise. On clinical examination abdominal pain was elicited, and a midabdominal mass was detected in survey radiographs. Ultrasound‐guided fine‐needle aspiration of the intra‐abdominal mass was done. The cytologic findings indicated chronic granulomatous inflammation with reactive fibroplasia, cholesterol crystals, and extracellular foreign material. The foreign material consisted of opaque, basophilic fragments of uniform width (5–10 μm) and variable length (30–180 μm) and was observed extracellularly and within macrophages. The material was birefringent under polarized light. Histologic examination of the excised mass confirmed the cytologic findings and a diagnosis of gossypiboma (textiloma) was made, consistent with retention of a surgical sponge. This case provides a unique example of the utility of fine‐needle aspiration for the diagnosis of gossypiboma.  相似文献   

4.
An abdominal mass was incidentally detected in a 12‐year‐old, neutered female, crossed breed dog. Abdominal ultrasonographic examination showed a well‐delineated, irregular, heterogeneous mass that did not generate any distal acoustic shadowing. Transcutaneous US‐guided biopsy of the mass were nonconclusive but raised the possibility of neoplasia. Surgery discovered a mass embedded in the omentum and a large quantity of surgical sponges were identified in cut section. To the authors’ knowledge, this represents the first published case of gossypiboma casting no characteristic distal acoustic shadowing.  相似文献   

5.
An aged mongrel dog was admitted for hemimandibulectomy as treatment for a mandibular mass that had been diagnosed as osteosarcoma. The fibro-osseous mass that surrounded the first molar tooth and replaced alveolar and cortical bone was reclassified as ossifying fibroma on the basis of anatomic location and histologic features. The tumor was composed of isomorphic fusiform cells with few mitotic figures. Tumoral stroma contained trabeculae of woven bone that were bordered by a single layer of osteoblasts. Excision was deemed complete with no evidence of extension or metastasis by computed tomography of the skull or thoracic and abdominal radiography. The dog was reportedly healthy 6 months after initial presentation. Though far less common than osteosarcoma as a primary canine bone tumor, ossifying fibroma should be included in the differential diagnosis for fibro-osseous proliferations, especially those of the jaw. Although benign, en bloc excision may be necessary for surgical cure.  相似文献   

6.
A 2-year-old neutered female Rottweiler diagnosed with an intradural extramedullary spinal cord tumor at T12-T13 was successfully treated with cytoreductive surgery followed by Cobalt 60 teletherapy. The dog was euthanised 5-and-a-half years later following diagnosis of an osteosarcoma involving the L1 and L2 vertebrae. Evidence of the initial tumor was not present at necropsy. The vertebral neoplasm fulfilled all of the accepted criteria for a radiation induced tumor. It was concluded that adjunctive irradiation should be considered for treatment of intradural extramedullary tumors of young dogs when total surgical resection is not possible. Although tumor induction is a rare late effect of radiation therapy, the risk of this occurrence should be considered when irradiating young animals. Radiation induced tumors in dogs have been associated with coarse fractionation schemes, or when large intraoperative doses have been administered. A lower dose per fraction, e.g., 3 Gy/fraction or less, is advisable when irradiating young dogs or any dog in which the life expectancy is 3-5 or more years after irradiation.  相似文献   

7.
Objective – To describe a case of a focal right ventricular rupture following removal of a rib-associated telangiectatic osteosarcoma (TOS) in a dog.
Case Summary – A 2-year-old spayed female mixed-breed dog, weighing 20 kg, was presented in compensated hypovolemic shock due to active bleeding into the thoracic cavity. The dog was stabilized with appropriate fluid administration. Subsequent computed tomographic examination revealed a large mineralized mass originating from the body of a rib and displacing the heart. Two days after surgical removal of this mass, focal right ventricular rupture occurred and the dog died. The mass was later identified as a TOS.
New or Unique Information Provided – Although hemothorax secondary to TOS has been described previously, this report describes for the first time, spontaneous focal right ventricular rupture as a rare complication of thoracotomy and rib resection for the removal of a rib-associated, intrathoracic TOS.  相似文献   

8.
A 6-year-old, male Labrador retriever was presented for lameness of the right forelimb. The lameness occurred 5 years after the dog was surgically treated for osteochondritis dissecans (OCD) of the caudal right humeral head. Radiographs revealed an expansile, osteolytic lesion occupying the entire caudal half of the right humeral head, and biopsy confirmed the diagnosis of osteosarcoma. Forelimb amputation was performed. Histopathology of the lesion and associated articular cartilage revealed neoplastic osteoblasts extensively infiltrating the marrow space adjacent to scar tissue associated with the previous OCD lesion. This is the first report of an epiphyseal osteosarcoma in the area of a previous OCD lesion in a dog.  相似文献   

9.
An 11-year-old mixed breed dog was referred because of coughing and painful swelling of the distal extremities which had not resolved with antibiotic treatment. A consolidated left cranial lung lobe and hypertrophic osteopathy were identified by radiographs. A unique feature of this report is the marked, rapid reduction in pain and lameness associated with hypertrophic osteopathy after treatment with corticosteroids. Histological examination of an 8 cm diameter, spherical mass found in the excised cranial lung lobe revealed osteosarcoma. No evidence of local or distant metastases was present. The dog survived one year after diagnosis.  相似文献   

10.
Histologically confirmed lipomas were surgically removed from the thoracic or abdominal cavities of six dogs. Three dogs had a large intra-abdominal mass causing severe abdominal distension. Two dogs had a mass extending into the pelvic canal, compressing the colon and causing obstipation. One dog with an intrathoracic mass had a history of coughing and intermittent cyanosis. All dogs had complete resolution of signs after surgical resection of the tumour. Recurrence occurred in one dog with an abdominal lipoma, two years after the initial surgery. This recurrent lipoma was treated successfully by surgical resection.  相似文献   

11.
A 4-year-old male Shiba dog initially presented with pain of an undetermined origin and hypersensitivity to touch. Seven days later, the dog developed ataxia, hind-leg weakness and knuckling. The dog died on 20 days after presentation. Postmortem examination revealed a mass in the body of thoracic vertebra. Histopathologically, the mass consisted of granulomatous inflammation, including fungal organisms that were immunohistochemically positive for Candida albicans. Similar granulomatous lesions were observed in the systemic lymph nodes, kidneys, pancreas, spleen, prostate gland, thyroid glands and heart. This case was diagnosed as systemic candidiasis with spondylitis.  相似文献   

12.
Primary jejunal osteosarcoma was diagnosed in association with a surgical sponge in a dog. The tumor was biologically aggressive, resulting in widespread metastasis throughout the abdomen within 2 months of surgical resection. Microscopic examination of the resected osteosarcoma revealed strands of gauze material throughout the tumor mass. It was theorized that the presence of a sponge foreign body may have resulted in malignant transformation of adjacent tissues similar to what has been reported to occur after internal fixation of some long-bone fractures.  相似文献   

13.
Abstract: An 8‐year‐old female spayed domestic shorthair cat had an abdominal mass palpated as an incidental finding on physical examination. Cytologic findings in ultrasound‐guided fine‐needle aspirates of the mass were most compatible with a sarcoma, with abundant mineralized material and mixed inflammation. The mass was removed surgically and on gross examination was white‐tan, firm, associated with the mesentery, and when transected contained a gauze sponge in its center. On histopathologic examination, an area of central necrosis with mineralization and numerous refractile fibers consistent with sponge material was surrounded by dense fibrous connective tissue (gossypiboma). Within the connective tissue was a population of highly pleomorphic spindle cells consistent with a fibrosarcoma. Immunohistochemically, most neoplastic cells stained strongly positive for vimentin and a low number of cells were positive for smooth muscle actin. The results were consistent with a fibrosarcoma arising at the site of a retained surgical sponge. At a follow‐up visit 2 months postoperatively, ultrasonographic and cytologic evidence of metastasis was found in the spleen and mesentery. To our knowledge, this is the first report of malignant transformation at the site of a retained surgical sponge in a cat and the first report of a fibrosarcoma arising within a gossypiboma in a domestic animal.  相似文献   

14.
An eight-year-old dog with a local relapse of an osteosarcoma was treated with partial maxillectomy and systemic radionuclide therapy that involved two injections, 43 and 45 megabec-querels per kg bodyweight of the bone-seeking agent samarium-153-ethylenediaminetetramethy-lene phosphonic acid (153Sm-EDTMP), 15 weeks apart. A transient drop in white blood cell count and platelet count was observed following each 153Sm-EDTMP treatment. Follow-up 21 months after surgery revealed no evidence of local recurrence or metastases. The dog was in excellent condition, suffering only minor sequelae from the surgical procedure. Compared with historical controls treated with surgery alone, the combination of surgery and systemic radionuclide therapy seems a promising strategy for the treatment of canine osteosarcoma.  相似文献   

15.
The influence of RA233, an inhibitor of platelet function, on the occurrence of metastasis in 18 dogs with osteosarcomas was evaluated. At least 24 hours before surgical removal of the primary tumor, dogs were given RA233 orally (20 mg/kg of body weight divided into 3 equal doses). Original sites of the osteosarcoma included humerus, 6 dogs; radius, 5 dogs; tibia, 3 dogs; femur, 2 dogs; maxilla, 1 dog; and mandible, 1 dog. Survival time for 13 dogs euthanatized for progression of neoplastic disease ranged from 3 months to 10 months, with a mean survival time of 5.5 months. Medication was discontinued in 1 dog because of possible adverse reaction. One dog died of disease unrelated to the tumor, and one dog was euthanatized after the surgery. Two dogs were tumor free 9 and 17 months after surgery. Seemingly, the metastasis potential was not diminished in dogs given 20 mg of RA233/kg/day.  相似文献   

16.
A 9-year-old male Shih Tzu with osteosarcoma had a forelimb amputation and underwent chemotherapy. During chemotherapy, the right eye was enucleated due to refractory glaucoma, and was diagnosed as anterior uveal malignant melanoma. The dog lived for 4 months after the enucleation without treatment. After the dog died, the mass in the eye was re-evaluated immunohistochemically, and it was diagnosed as metastasis of appendicular osteosarcoma. Metastasis of appendicular osteosarcoma to the anterior chamber is quite rare, and the clinical course which showed clinically detectable metastases to the eye before systemic multi-organ metastases was quite unique.  相似文献   

17.
A mandibular parosteal osteosarcoma was diagnosed in a 7-year-old Collie with prolapse of the third eyelid. Diagnosis was made by histologic evaluation of a mass removed by surgical excision. The dog was euthanatized because of local recurrence of the tumor, with metastasis to the lungs. Parosteal osteosarcomas are rarely reported in dogs and usually involve long bones in human beings.  相似文献   

18.
A seven-and-a-half-year-old dog presented with anorexia, lethargy and haematurla. A 1.8 kg abdominal mass was excised and determined to be a primary renal osteosarcoma. Haematuria was observed five months after surgery and the tumour was radiographically determined to have recurred locally. The dog was euthanased 12 days later due to refractory pain and anorexia. Although osteosarcomas are expected to develop distant metastases, this dog was euthanased due to clinical evidence of local tumour recurrence. Haematuria was an indication both of initial tumour development and later recurrence.  相似文献   

19.
A young adult Labrador retriever dog was presented for surgical debulking of hepatic alveolar echinococcosis. Computed tomography detected hepatomegaly with multiple large cavitary masses with extension of tissue from a lesion wall into the caudal vena cava and numerous nodules in all lung lobes. Following euthanasia, histology confirmed parasitic vesicles with granulomatous reaction in all lesions, and polymerase chain reaction (PCR) established the causative agent to be Echinococcus multilocularis. This report is the first to present imaging features of pulmonary E. multilocularis granulomata in a dog.  相似文献   

20.
Use of cyclosporine to treat granulomatous meningoencephalitis in three dogs Three dogs with a presumptive diagnosis of granulomatous meningoencephalitis were treated with orally administered cyclosporine. In 2 dogs, cyclosporine administration replaced initial corticosteroid administration, and in 1 dog, cyclosporine was the only treatment used. One dog had the focal form of the disease in the brainstem, 1 dog had the focal form in the forebrain associated with a concurrent ocular form, and 1 dog had the disseminated form of disease. At 12-month follow-up, the 2 dogs with the focal form of the disease had no clinical signs. The dog with the disseminated form improved only partially, and euthanasia was performed 3 weeks after initial evaluation. Cyclosporine was considered effective at an initial dosage of 6 mg/kg (2.7 mg/lb) every 12 hours. Adverse effects associated with cyclosporine administration included transient lymphopenia, excessive shedding, and focal symmetric hair discoloration.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号