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1.
An orbital sialocele developed in a dog following enucleation for protracted glaucoma. This eye had historically been treated for keratoconjunctivitis sicca by parotid duct transposition approximately 5 years previously, and the duct was ligated distally at the time of enucleation. One month following enucleation, the dog presented with a fluctuant conical-shaped swelling ventrolateral to the orbital socket. Surgical exploration revealed a dilated, fibrotic distal portion of the previously transposed parotid duct, and saliva, within the enucleated orbit. The distal portion of the duct and saliva-containing tissues from within the orbit were excised. The remaining proximal normal portion of the parotid duct was re-routed into the oral cavity. Clinicopathologic and histologic examination of the excised orbital contents and dilated portion of duct revealed a sterile sample of saliva and moderate chronic periductal fibrosis. At a 6-month re-evaluation there was no evidence of recurrence of the sialocele, and the parotid duct was functional. 相似文献
2.
Rhodes M Heinrich C Featherstone H Braus B Manning S Cripps PJ Renwick P 《Veterinary ophthalmology》2012,15(4):213-222
Objective The aim of this study was to perform a retrospective review of parotid duct transposition (PDT) in the dog to determine the rate and nature of complications, the success and failure rates and to evaluate owner satisfaction. Methods Medical records of 56 dogs (92 eyes) that underwent PDT and subsequent follow‐up by a veterinary ophthalmologist were reviewed. Forty owners (40 dogs/66 eyes) were contacted by telephone and 37 owners (37 dogs/60 eyes) also completed a visual analog scale questionnaire. Statistical evaluation included Wilcoxon Signed Rank tests, one‐way analysis of variance and Kaplan–Meier survival analysis with Wilcoxon and Log‐rank tests. Results The mean follow‐up was 38.7 months (range 1–109 months). The surgical success rate was 92% (85/92 eyes). Total failures (8%, 7/92 eyes) were because of severe saliva intolerance (n = 5 eyes) and PDT failure (n = 2 eyes). The complication rate was 50% (46/92 eyes) of which 61% (28/46 eyes) were managed medically and 39% (18/46 eyes) required further surgery. Ninety percent (36/40) of owners indicated that they would proceed with surgery again. Statistically significant improvements in owner perception of ocular comfort, number of daily topical treatments, ocular wetness, and postoperative vision were identified. Conclusions This study shows that PDT is a successful procedure based on clinical findings and in terms of owner perception. It has also demonstrated that PDT improves ocular comfort and vision in medically refractive cases of keratoconjunctivitis sicca, and that a low level of on‐going management is required in 33% of cases. 相似文献
3.
An 11-year-old Thoroughbred mare was diagnosed with sialolithiasis of the right parotid salivary duct. A firm nonpainful subcutaneous mass was palpable in the right maxillary region adjacent to premolar 4 (tooth 108). Radiographic and ultrasonographic examinations identified a discrete mineralised ovoid mass that was hyperechoic and produced an acoustic shadow. Surgical excision of the mass was performed under standing sedation using a transcutaneous approach and the excised sialolith submitted for histopathological and mineral composition analyses. Histological examination found no evidence of a nidus at the sialolith's core. Mineral analysis of the sialolith revealed its composition to be 40% calcium phosphate (apatite) and 60% calcium carbonate. The mare recovered with no post-operative complications and was clinically unremarkable 2 years later. 相似文献
4.
Valerie M. Sadler DVM Erik R. Wisner DVM James T. Robertson DVM Valentine S. Moses DVM 《Veterinary radiology & ultrasound》1999,40(3):259-261
Congenital anomalies of the equine salivary glands and their ductal systems are rare. In man, parotid duct atresia is thought to be due to a congenital malformation of the first branchial arch. One horse with unilateral parotid salivary duct atresia is described. Imaging modalities available for accurate diagnosis, and treatment options, are reviewed. 相似文献
5.
《东北农业大学学报(英文版)》2016,(3):54-60
Smokeless tobacco is very common personal habit of people living in various areas of Asia which is an alarming sign for the development of different oral diseases in such people.The aim of present study was to investigate effects of smokeless tobacco on parotid glands of the Aalbano rats by using various percentages of the smokeless tobacco.The rats were divided into three different groups,control group(A) no smokeless tobacco,experimental group(B) 5%smokeless tobacco and experimental group(C) 10%of smokeless tobacco with different feeds required according parameters.Weekly weight gain and partid gland were analyzed through student P test and histological structures were recorded through HE stain and Retculin stain.The results showed that as compared to control group body,weight of the rats was decreased in groups B and C having smokeless tobacco percentage in the diet.Weight of parotid gland as compared to control group was decreased in groups B and C with diet of smokeless tobacco.Further,histological observation under HE stain showed that parotid gland of group B showed mild narrowing of ductal lumen,collapse of vessels and stromal was also increased,in group C parenchymal tissues with loss of acini found damaged and glandular dystrop and lymphatic infiltration were determined moderate to severe.Meanwhile,reticulin stain showed that vascular collapses were shown because of increasing in stromal glandular atrophy in group C as compared to control group.In conclusion,this study showed that smokeless tobacco caused serious injuries in the tissue level in parotid gland with high percentage of smokeless tobacco which highlight health hazards on its consumption. 相似文献
6.
为获得具有植酸酶腮腺特异性表达的猪转基因克隆胚胎,本研究使用植酸酶腮腺特异性表达的DNA质粒(包含腮腺分泌蛋白(parotid secretary protein,PSP)启动子与终止子序列、Neo筛选基因、绿色荧光蛋白(EGFP)报告基因和高比活的植酸酶appA基因),采用脂质体转染和基因素418(G418)药物抗性筛选的方法获取稳转细胞系,并利用体细胞核移植技术获得植酸酶转基因胚胎。结果表明,本研究构建的DNA质粒可用于细胞筛选,且质粒越小,细胞的转染效率越高,14.89 kb的YM6552仅获得了7.1%的转染率,EGFP质粒则获得了43.4%的转染效率。在单克隆形成上,较小的pYN3600也获得了更高的单克隆形成数(25个),其中表达EGFP的单克隆有14个,植酸酶PCR阳性集落有11个,高于YM6552的单克隆数(19、8和6)。转基因细胞构建重构胚胎后,所有的胚胎均能表达绿色荧光蛋白,虽其体外发育能力有所下降,但差异不显著(P>0.05)。综上所述,本研究所采用的植酸酶质粒、细胞筛选方法和核移植技术可生产植酸酶重构胚。 相似文献
7.
Objective To determine the outcome and effect of a partial ligation of the transposed parotid duct at the level of the parotid gland in four dogs with excessive salivation and ocular irritation. Methods Four dogs were previously diagnosed with absolute keratoconjunctivitis sicca. After a parotid duct transposition (PDT) surgery, these dogs experienced excessive saliva production and abundant salivary precipitates, which resulted in epiphora, moist dermatitis, blepharospasm, and keratitis. In an effort to decrease saliva production, a partial ligation of the transposed duct at the level of the parotid gland was performed. Two or three accessory branches to the primary parotid duct were ligated at the level of the salivary gland. Results The four cases were three Yorkshire terriers and a Chihuahua. The average age of the four patients was 2.5 years. Partial ligation of accessory branches of the parotid duct at the level of the parotid gland after a PDT in this study demonstrated improved ocular comfort, decreased salivary precipitates, and adequate Schirmer tear test results without marked epiphora in three of the four animals. The male Yorkshire had epiphora after the initial partial ligations of two accessory branches were placed at the level of the parotid gland. To correct the excessive salivary flow, two additional ligatures were placed at a later date, which resolved the epiphora. Conclusion Partial ligation of the parotid duct at the level of the parotid gland proved to be an effective technique in moderating the salivation in these four patients with excessive salivary secretions after PDT. 相似文献
8.
在31例尸头上解剖下颌后静脉。就其组成、属支、回流及毗邻关系作了描述和分析;测量了该静脉的长度、外径,并以颧弓、耳垂、下颌角等对下颌后静脉的起点和分叉处等进行了定位;探讨了下颌后静脉的回流情况,以期为临床腮腺肿瘤切除时可作为解剖面神经颈支及颈面干的解剖标志。 相似文献
9.
CT诊断腮腺肿瘤的价值 总被引：3，自引：0，他引：3
研究ＣＴ诊断腮腺肿瘤的价值。２１例采用ＣＴ扫描与病理对照研究。ＣＴ诊断腮腺肿瘤的敏感性为８２．６％，特异性６６．７％，漏诊率１７．４％；误诊率３３．３％。ＣＴ鉴别腮腺良，恶性肿瘤的敏感性为５４．５％，特异性６８．２％，漏诊率４５．５％，误诊率３１．８％， 相似文献
10.
This report describes two cases of unilateral traumatic injury to the parotid salivary gland or duct and the subsequent development of severe ipsilateral peripheral dental caries. Ultrasonographic examination of the parotid salivary gland and duct was indicative of parotid glandular atrophy in one case and demonstrated parotid duct obstruction in the second case. To the authors’ knowledge, the effects of the loss of function of the parotid salivary gland on the horse's dentition has not been documented and should be considered as a potential side effect of surgical ablation of the parotid salivary gland. 相似文献