共查询到20条相似文献，搜索用时 15 毫秒
1.
Brazzell JL Borjesson DL 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》2006,35(2):259-262
An 11-year-old female Yorkshire terrier was presented to the University of Minnesota Veterinary Medical Center for evaluation of a palpable intra-abdominal mass and alopecia. Abdominal ultrasonography revealed a large, complex, cavitary mass in the left caudal region of the abdomen. A fine needle aspirate of the mass was collected. A population of markedly pleomorphic, large, round to polygonal cells were found singly and in small noncohesive aggregates. The cells contained scant, clear to blue-gray cytoplasm, large, round to oval nuclei, and distinctly stippled to reticular chromatin. Cytologic findings were consistent with a tumor of ovarian origin, with a primary differential diagnosis of germ cell tumor. Hormonal analysis of serum revealed a marked increase in 14-OH-progesterone concentration (2.71 ng/mL, reference interval 0.05-0.69 ng/mL). Ovariohysterectomy was performed, and the mass was found to be in the area of the left ovary. Histologic evaluation of the reproductive tract confirmed a diagnosis of left ovarian dysgerminoma. Based on immunohistochemical stains, the tumor was negative for c-kit (CD117c) and single cells were positive for neuron-specific enolase. A right ovarian cyst and squamous metaplasia of the right uterine horn also were diagnosed. The cyst was presumed to be the source of 14-OH-progesterone, which likely resulted in the squamous metaplasia and dermatopathy. Three months after surgery, the progesterone concentration had returned to normal and the alopecia had nearly resolved. Dysgerminomas in dogs are reported rarely, but have a distinctive, recognizable, cytologic appearance and should be included in the differential diagnosis of an intra-abdominal mass in a reproductively intact female dog. 相似文献
2.
Kitagawa M Kanayama K Sakai T 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2004,66(1):91-93
A 10-year-old, female poodle was presented with left paresis and vestibular signs, following left enophthalmus and atrophy of the cheek. Magnetic resonance imaging revealed a mass along the base of the brain and extending from the left cerebellopontine angle to the sella turcica. The mass showed isointensity on the T1-weighted image and T2-weighted image, and was enhanced by contrast medium (Gd-DTPA). Although occipital craniotomy was carried out and the mass removed, the dog died without recovering from the anesthesia. The tumor was diagnosed pathologically as fibroblastic meningioma. 相似文献
3.
Surgical resection of a dysgerminoma in a mare 总被引：1，自引：1，他引：0
A mare was referred for further evaluation of a mass found in the left caudal abdomen during a routine postpartum reproductive palpation. The mare was clinically normal with no history of health problems. Ultrasonographic examination of the mass confirmed its presence, but the origin of the mass could not be accurately determined. Routine haematology and serum biochemistry results were within normal limits. The mare was initially treated conservatively with antibiotics, but the mass continued to increase in size, so it was surgically excised. The mass involved the left ovary. The mare showed transient abdominal pain after surgery, but developed no other complications and was in foal 7 months later. On histology, the mass was diagnosed as a dysgerminoma, a rare ovarian tumour of germ cell origin. 相似文献
4.
D A Fiorito 《Journal of the American Veterinary Medical Association》1986,188(1):71-72
A 13-year-old female, spayed cat had oral and vestibular signs resulting from a 3-cm mass extending from the tympanic membrane to the nasopharynx. Radiography revealed a soft-tissue density in the tympanic bulla. Cytologic examination and biopsy confirmed the presence of a squamous cell carcinoma. Squamous cell carcinoma causes vestibular signs in the cat. In this cat, squamous cell carcinoma, involving the middle and inner ear, resulted in oral and vestibular signs. 相似文献
5.
《Journal of Exotic Pet Medicine》2014,23(3):287-293
A 3-month-old intact female ferret (Mustela putorius furo) was presented with a 2-month history of ataxia. On physical examination, the ferret had difficulty standing upright. During the neurologic examination, the patient had a left head tilt and positional strabismus, circled to the left, and was ataxic. Results of the complete blood count were consistent with a mild normocytic normochromic anemia. Initial treatment was supportive. Magnetic resonance imaging was performed and revealed an asymmetry of the inner ears. A brainstem auditory evoked response test was also performed. History, clinical signs, and diagnostic test results indicated that the ferret was suffering from congenital peripheral vestibular syndrome and left-sided deafness. Congenital disease should be considered in the differential diagnosis of young ferrets with peripheral vestibular syndrome. Supportive care and physiotherapy can improve balance and motor function, leading to an acceptable quality of life. 相似文献
6.
An ovarian enlargement (diameter, 8 cm) was identified and surgically excised from a 5-year-old female dog. Microscopic examination of the multinodular neoplasm revealed sheets of polygonal neoplastic cells with large nuclei, frequent mitosis, necrosis and haemorrhage. Immunohistochemically, the neoplastic cells were positive for vimentin and alkaline phosphatase but were negative for CD3, CD79a, cytokeratin, alpha-fetoprotein, inhibin-α and S-100. The histopathological diagnosis of the mass was unilateral ovarian dysgerminoma. 相似文献
7.
Vestibular syndrome associated with an ependymoma in a cat 总被引：1，自引：0，他引：1
W Ingwersen S Groom J Parent 《Journal of the American Veterinary Medical Association》1989,195(1):98-100
An ependymoma was diagnosed in a 4.5-year-old spayed Siamese cat with clinical signs of vestibular disease. Diagnosis was based on history, results of neurologic examination, and the finding of neoplastic cells in CSF. Necropsy revealed an ependymoma arising from the fourth ventricle of the ventricular CNS and involving the left medullary and cerebellar areas. 相似文献
8.
Gemistocytic astrocytoma in a one-month-old llama 总被引：2，自引：0，他引：2
D S Garlick T J Doherty M R Paradis 《Journal of the American Veterinary Medical Association》1990,196(12):2009-2010
A tumor involving the caudal portion of the brainstem was detected at necropsy after euthanasia of a 1-month-old llama with clinical signs consistent with vestibular disease. Gemistocytic astrocytoma of the medullary mass was the histopathologic diagnosis. Regardless of age, neoplasia should be included in differential diagnosis in animals with signs referable to the CNS. 相似文献
9.
W. T. K. Bosu S. C. Van Camp R. B. Miller R. ap R. Owen 《The Canadian veterinary journal. La revue veterinaire canadienne》1982,23(1):6-14
A five year prospective study of equine ovarian problems requiring surgical correction was undertaken at the Ontario Veterinary College. Thirty mares were studied, of which 14 had granulosa cell tumors, six were with anovulatory persistent follicular “structures”, five had ovarian hemotoma, two presented ovarian hypoplasia and one each of ovarian dysgerminoma, teratoma and abscessation. The clinical signs manifested by the affected animals were varied. The affected ovaries were removed via flank or midline laparotomy or through colpotomy. Their morphology was studied and representative portions of affected ovaries submitted for laboratory diagnosis. Postsurgical recovery and resumption of reproductive activity were satisfactory. 相似文献
10.
Soo-Hyeon Kim Byung-Joon Seung Seung-Hee Cho Ha-Young Lim Min-Kyung Bae Kyung-Yeon Eo Yong-Gu Yeo Jang-Won Son Jung-Hyang Sur 《Journal of veterinary diagnostic investigation》2021,33(2):366
A 36-y-old white rhinoceros (Ceratotherium simum) was presented with respiratory distress, sanguineous vaginal exudate, and anorexia. The clinical signs progressed over 40 d, and the rhinoceros died. Autopsy revealed significant ascites; a unilateral, 12.5-cm diameter, polypoid mass in the left ovary; a white, firm transmural mass in the right uterine horn; a white, friable mass in the lung; and white-to-tan, friable small nodules in the diaphragm. Histologic examination revealed similar neoplastic cells in the masses in all 4 locations, composed predominantly of epithelial cells proliferating in a tubulopapillary pattern with significant nuclear atypia and numerous atypical mitotic figures (18–42 per 2.37 mm2). Immunohistochemistry for CK7 (cytokeratin 7) and CK20 (cytokeratin 20) suggest that the ovarian, pulmonary, and diaphragmatic lesions were of ovarian origin and that the ovary was the primary tumor site. 相似文献
11.
12.
Sontas BH Milani C Romagnoli S Bertolini G Caldin M Caliari D Zappulli V Mollo A 《Reproduction in domestic animals》2011,46(6):1107-1111
A 11-year-old, spayed, female mixed breed-dog was presented with an abdominal mass that was detected 1 month ago. Upon abdominal palpation a large, firm, oval shaped, movable mass was found in the mid-abdominal region. Survey radiograph of the abdomen demonstrated an oval soft tissue dense mass located on the right side of the abdominal cavity. A large, heteregenous and cystic mass with solid components occupying the majority of the abdomen and a small, cystic mass with solid components caudal to the left kidney were identified by transabdominal ultrasonography. Computed tomography scans revealed bilateral ovarian masses, and a small volume of retroperitoneal fluid on the right side. A cystic, but otherwise solid mass located in the right ovary and small retained left ovary encapsulated in the ovarian bursa were excised surgically by midline laparotomy. Histopathological examination of the excised mass from the right side revealed a large cystic structure consistent with an ovarian cyst and multiple corpora lutea and follicles at different maturational stages were detected in the left ovary. The precise origin of the ovarian cyst could not be determined by morphological appearance. Immunohistochemical staining suggested a cyst of surface epithelial origin. At re-examination 6 months after the surgery, the bitch appeared healthy and the clinical findings were all normal. To our knowledge, the cyst described here is the largest reported in an incompletely ovariohysterectomized bitch. 相似文献
13.
Sykes JE 《Journal of Feline Medicine and Surgery》2003,5(6):353-356
A case of peripheral arterial tumor embolization in a cat is described. The cat presented with signs of aortic thromboembolism, including decreased peripheral pulse quality, pallor, and coolness of the distal limbs, as well as proprioceptive deficits. Thoracic radiographs revealed a cavitary lung mass; echocardiography was unremarkable. Cytologic evaluation of aspirates of the mass suggested malignancy. The left hindlimb was amputated, and histopathology confirmed embolization of an adenocarcinoma. Although rare, peripheral arterial tumor embolization should be considered as a differential in cats presenting with signs of thromboembolic disease. 相似文献
14.
D A Wilson J H Foreman M J Boero P J Didier D J Lerner 《Journal of the American Veterinary Medical Association》1989,194(5):681-682
A large granulosa cell tumor was believed to be responsible for causing obstruction and subsequent rupture of the small colon in a 10-year-old Quarter Horse mare. Two months earlier, a mass, tentatively diagnosed as granulosa cell tumor of the left ovary, had been identified by means of rectal palpation and ultrasonography. The mare was evaluated for clinical signs of acute, severe, abdominal pain, increased heart rate, cyanotic mucous membranes, clinical dehydration, with high PCV, leukopenia, and extreme abdominal distension. A large soft tissue mass and taut band that constricted the lumen of the small colon were palpable per rectum. Septic peritonitis was diagnosed on the basis of results of abdominocentesis. Exploratory surgery revealed extensive fecal contamination of the abdominal viscera, and the mare was euthanatized because of the resultant poor prognosis. At necropsy, the small colon was occluded by a taut, left broad ligament and the ovarian mass that was proved to be a granulosa cell tumor. The occlusion had caused impaction of the small colon, with subsequent perforation at the level of the broad ligament. 相似文献
15.
An exploratory laparotomy on a mixed‐breed bitch of an estimated age of 5 years revealed that she had undergone ovariectomy in the past, but a cystic structure was present in the area of the right ovary and a whitish mass, approximately 3 cm in diameter, in the area of the left ovary. These structures were removed together with an apparently normal uterus. Histological examination of the cyst showed a thin layer of connective tissue, while the left ovarian mass revealed ovarian tissue and highly differentiated nervous tissue, confirmed through immunohistochemistry. A presumptive diagnosis of mature ovarian teratoma was made. Although teratomas generally contain recognizable elements from more than one of the three germ cell layers, they can also be monophasic, when there is only one germ layer component. Ovarian teratomas are rare in the dog and never before have been reported in an ovarian fragment. 相似文献
16.
A 5-year-old castrated male domestic longhair cat was presented with neurological signs consistent with a central vestibular lesion and left Horner's syndrome. Computed tomography images revealed hyperattenuating, moderately contrast-enhancing material within the left tympanic bulla, most consistent with left otitis media/interna. Marked neutrophilic pleocytosis was identified on cerebrospinal fluid analysis. Streptococcus equi subspecies zooepidemicus (SEZ) was isolated from the cerebrospinal fluid. Intracranial extension of otitis media/interna is relatively infrequent in small animals. There are no reports of otitis media/interna caused by SEZ in dogs or cats. This is the first report of otitis media/interna and presumptive secondary meningoencephalitis caused by SEZ in a cat. 相似文献
17.
Kim H Choi H Kim H Choi J 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2012,74(3):385-389
A 13-year old intact female poodle showed persistent signs of estrus. Ultrasonographically, a large cystic mass containing echogenic fluid with a thin wall was observed, and it was 8 cm in diameter. The cystic mass was located at the mesovarium between the left ovary and uterine horn, and it was identified as a giant parovarian cyst. A right ovarian mass was histologically diagnosed as a granulosa cell tumor. Persistent estrogen hormone secretion by the granulosa cell tumor was thought to cause a rapid increase in the size of the parovarian cyst. This rare cystic mass originated from the genital system and was differentiated from the uterus. 相似文献
18.
Cizinauskas S Lang J Maier R Fatzer R Jaggy A 《Schweizer Archiv für Tierheilkunde》2001,143(8):419-425
A thirteen-year old spayed female poodle was referred because of atrophy of temporal and masseter muscles on the left and head tilt and episodical circling to the right side. Additionally, decreased facial sensation, absent menace reaction, palpebral and corneal reflexes on the left side, as well as ipsilateral hemiparesis and tongue palsy were noticed. Generalised vestibular ataxia and hypermetria in the front limbs were present. Based on the clinical signs, the presumptive anatomical localization of the lesion was the cerebellopontine angle including parts of the caudal brainstem with involvement of the trigeminal, facial and hypoglossal nerves. Involvement of either flocculonodular lobe or the caudal cerebellar peduncle on the left side causing paradoxical vestibular disease was suspected. On magnetic resonance imaging a large enhancing lesion in the area of the left cerebellopontine angle involving the trigeminal nerve and compressing cerebellum and brainstem was seen. Because of the poor prognosis the dog was euthanized on the owner's request. This space occupying lesion could be identified as a trigeminal neurofibrosarcoma/schwannoma on post mortem histopathological examination. 相似文献
19.
Testosterone-producing thecoma in a female cat 总被引：2，自引：0，他引：2
Virilizing features in a six-year-old, spayed female, domestic shorthair cat resolved following surgical removal of a mass at the left ovarian stump. Serum testosterone concentration before surgery was elevated. Clinical signs resolved and testosterone concentration normalized after removal of the tumor. A testosterone-producing thecoma was found on histopathology. This report presents the case report and literature review of thecomas. 相似文献
20.
Eker K Salmanoğlu MR Vural SA 《Journal of the American Animal Hospital Association》2006,42(5):392-394
Routine ultrasonographic evaluation of the genital organs of a 3-year-old terrier bitch revealed a mass at the level of the left ovary. The mass was located next to the caudal pole of the left kidney and ventrocaudal to the left ovary. Ultrasonographically, the uterus was not enlarged and had no luminal contents. Exploratory laparotomy revealed a mass attached to the left ovarian bursa with a small and thin pedicle. The mass had smooth margins, was whitish in color, and was lobulated on cut surface. The histopathological diagnosis of the mass was leiomyoma associated with the mesosalpinx. 相似文献