Dry environment on the expression of lacrimal gland S100A9,Anxa1,and Clu in rats via proteomics

●AIM:To investigate the underlying mechanism of dry environment(autumn dryness)affecting the lacrimal glands in rats.●METHODS:Twenty Sprague-Dawley rats were randomly divided into two groups.The rats were fed in specific pathogen free environment as the control group(n=10),and the rats fed in dry environment as the dryness group(n=10).After 24d,lacrimal glands were collected from the rats.The tissues morphology was observed by hematoxylineosin(HE)staining.Tandem mass tags(TMT)quantitative proteomics analysis technology was used to screen the differential expressed proteins of lacrimal glands between the two groups,then bioinformatics analysis was performed.Further,the immunohistochemical(IHC)method was used to verify the target proteins.●RESULTS:In dryness group,the lacrimal glands lobule atrophied,the glandular cavities enlarged,the sparse nuclear distribution and scattered inflammatory infiltration between the acinus were observed.The proteomics exhibited that a total of 195 up-regulated and 236 downregulated differential expressed proteins screened from the lacrimal glands of rats.It was indicated that the biological processes(BP)of differential expressed proteins mainly included cell processes and single BP.The cellular compositions of differential expressed proteins mainly located in cells,organelles.The molecular functions of differential expressed proteins mainly included binding,catalytic activity.Moreover,the Kyoto Encyclopedia of Genes and Genomes(KEGG)pathway analysis showed that the differential expressed proteins mainly involved lysosome,complement and coagulation cascade,and ribosome pathway.The IHC result verified that the up-regulated expression proteins of Protein S100A9(S100A9),Annexin A1(Anxa1),and Clusterin(Clu)in lacrimal glands of rats in dryness group were higher than control group.●CONCLUSION:The up-regulated expression proteins of S100A9,Anxa1,and Clu may be the potential mechanisms of dry eye symptoms caused by dry environment.This study provides clues of dry environments causing eye-related diseases for further studies.

Giant Brunner's gland hyperplasia of the duodenum successfully resected en bloc by endoscopic mucosal resection: A case report

BACKGROUND Duodenal Brunner's gland hyperplasia(BGH)is a therapeutic target when complications such as bleeding or gastrointestinal obstruction occur or when malignancy cannot be ruled out.Herein,we present a case of large BGH treated with endoscopic mucosal resection(EMR).CASE SUMMARY An 83-year-old woman presented at our hospital with dizziness.Blood tests revealed severe anemia,esophagogastroduodenoscopy showed a 6.5 cm lesion protruding from the anterior wall of the duodenal bulb,and biopsy revealed the presence of glandular epithelium.Endoscopic ultrasonography(EUS)demonstr-ated relatively high echogenicity with a cystic component.The muscularis propria was slightly elevated at the base of the lesion.EMR was performed without complications.The formalin-fixed lesion size was 6 cm×3.5 cm×3 cm,showing nodular proliferation of non-dysplastic Brunner's glands compartmentalized by fibrous septa,confirming the diagnosis of BGH.Reports of EMR or hot snare polypectomy are rare for duodenal BGH>6 cm.In this case,the choice of EMR was made by obtaining information on the base of the lesion as well as on the internal characteristics through EUS.CONCLUSION Large duodenal lesions with good endoscopic maneuverability and no evident muscular layer involvement on EUS may be resectable via EMR.

Different histological subtypes of parotid gland tumors: CT findings and diagnostic strategy

AIM:To present computed tomography(CT) findings of different histological subtypes of parotid gland masses in detail and to establish diagnostic strategy.METHODS:From January 2009 to November 2011,56 patients were collected through the histopathology and Picture Archiving and Communication Systems records,which revealed 5 basal cell adenoma(BCA),16 pleomorphic adenoma(PA),25 Warthin's tumor(War-T),3 Kimura's disease(KD) and 7 parotid carcinoma(PCa) cases.All the CT images were retrospectively analyzed by two radiologists in consensus,based on their description of morphology(location,number,size,margin and fibrous capsule) and enhancement patterns of masses.In addition,the diagnostic efficiency of diagnostic strategy is tested.RESULTS:War-T and BCA patients' mean age was 59.9 ± 12.6 years and 58.4 ± 18.2 years;the significant difference was seen in War-T vs PA and BCA vs PA.About 40% of War-Ts presented with bilateral multifocal lesions,a higher ratio than others.Seventy two percent of War-Ts were limited to the superficial lobe,followed by BCA 60% and PA 40%.Vessel facing sign and enlarged lymph nodes were both frequent in War-T,which respectively accounts for 84% and 76% of cases.Rapid contrast enhancement and decreases were unique for War-T.BCA and PA showed obvious delayed enhancement.The diagnostic strategy of parotid gland tumor had a good diagnostic efficiency,with high accuracy,sensitivity and specificity.CONCLUSION:Determination of the histological subtypes of parotid gland masses might be possible based on CT findings and clinical data.A diagnostic strategy with high diagnostic efficiency was established.

Large Brunner's gland adenoma:Case report and literature review

Brunner＇s gland adenoma （BGA） is a very rare benign tumour of the duodenum, which is usually asymptomatic and discovered incidentally at endoscopy. Occasionally, this lesion may be large, causing upper gastrointestinal haemorrhage or intestinal obstruction. The case had a large Brunner＇s gland adenoma, presenting melena that was managed by endoscopic excision.

Role of ghrelin in modulation of s-nitrosylation-Dependent akt inactivation induced in salivary gland acinar cells by porphyromonas gingivalis

Ghrelin, a peptide hormone, newly identified in oral mucosal tissue, has emerged re-cently as a principal modulator of the in-flammatory responses to bacterial infection through the regulation of nitric oxide syn-thase system. In this study, using rat sub-lingual salivary gland acinar cells, we report that lipopolysaccharide (LPS) of periodon-topathic bacterium, P. gingivalis- induced enhancement in the activity of inducible ni-tric oxide synthase (iNOS) was associated with the suppression in Akt kinase activity and the impairment in constitutive (c) cNOS phosphorylation. Further, we show that the detrimental effect of the LPS on Akt activa-tion, manifested in the kinase protein S-nitrosylation and a decrease in its phos-phorylation at Ser473, was susceptible to suppression by iNOS inhibitor, 1400W. Moreover, we demonstrate that a peptide hormone, ghrelin, countered the LPS- induced changes in Akt activity and NOS system. This effect of ghrelin was reflected in the decreased in Akt S-nitrosylation and the increase in its phosphorylation at Ser473, as well as cNOS activation through phos-phorylation. Our findings suggest that P. gingivalis-induced up-regulation in iNOS leads to Akt kinase inactivation through S-nitrosylation that impacts cNOS activation through phosphorylation. We also show that the countering effect of ghrelin on P. gingivalis-induced disturbances in Akt ac-tivation are manifested in a decrease in the kinase S-nitrosylation and the increase in its phosphorylation.

Pedunculated Brunner's gland hamartoma of the duodenum causing upper gastrointestinal hemorrhage

A case of pedunculated Brunner＇s gland hamartoma （BGH） of the duodenum causing upper gastrointestinal （GI） hemorrhage is reported. The patient was a 47-year-old man who visited our hospital for further evaluation of tarry stools and shortness of breath. Endoscopic examination of the upper digestive tract revealed a large peduncular polyp with bleeding, about 30 mm in diameter, arising from the wall of the second portion of the duodenum. GI bleeding occurred from the base of the stalk of the polyp. Endoscopic polypectomy was performed. Histological examination of the specimen revealed that the main body of the polyp contained several Iobules of mature Brunner＇s gland with areas of cystic dilatation. The surface epithelium consisted of normal duodenal mucosa with areas of focal ulceration. This polyp was diagnosed as a BGH. The symptom of tarry stools resolved after endoscopic resection. Our case shows that treatment is necessary for duodenal BGH if GI bleeding occurs.

Cystic Brunner's gland hamartoma in the duodenum:A case report

Cystic Brunner's gland hamartoma in the duodenum is exceedingly rare,although microscopic examination may sometimes reveal a Brunner's gland hamartoma containing dilated ducts in the duodenum.We present a case of large cystic Brunner's gland hamartoma in the duodenum with a long stalk,which is described in light of multidetector-row computed tomography,magnetic resonance imaging,and a modified small bowel series,together with pathologic correlation and differential diagnosis.

Diffuse large B-cell lymphoma arising from follicular lymphoma with warthin’s tumor of the parotid gland-immunophenotypic and genetic features: A case report

BACKGROUND Warthin’s tumor(WT)is composed of several cysts that are lined with tall,bilayered oncocytic columnar cells and lymphoid stroma.Within WT,the two components rarely transform into carcinoma or lymphoma,and when it does,carcinoma is the most common type.Approximately 28 cases of lymphoma with WT have been reported,most of which were non-Hodgkin lymphomas,and only a few cases were Hodgkin lymphomas.In the present report,we studied a case of diffuse large B cell lymphoma(DLBCL)arising from follicular lymphoma(FL)with WT in the parotid gland and its immunophenotypic and genetic features.CASE SUMMARY A 67-year-old man presented with a slowly enlarging right cheek mass for 12 years,and the mass began to change in size over a 2-mo time period.Over time,the patient felt mild local pain and right cheek discomfort.His medical history included a hepatitis B virus infection for 20 years and 30 years of smoking.Gross examination of the excised specimen showed a gray-red and gray-white appearance and a soft texture lobulated external surface neoplasm that measured 9 cm×8 cm×7 cm and was well circumscribed by relative normal parotid gland tissue.In cross section,the cut surfaces of the neoplasm were multicystic and had a homogeneous scaly appearance.A small fluid was discovered in the cyst.Bilateral oxyphilic,cuboidal or polygonal epithelium cells and lymphoid intraparenchymal components were observed.Many medium-to large-sized lymphoid cells were observed diffusely in part of the neoplasm,and a few secondary lymphoid follicles were observed at the center or edge of the neoplasm.Immunohistochemical staining showed that the columnar oncocytic cells were positive for AE1/AE3;neoplastic cells located in coarctate follicular were positive for CD20,Pax-5,bcl-2 and bcl-6;and the adjacent diffusely medium-to large-sized lymphoid cells were positive for Pax-5,bcl-6,CD20,MUM-1,bcl-2 and CD79a.The bcl-6(3q27)break-apart rearrangement was observed,and an Epstein Barr virus test was negative in the tumor cells.The patient survived 6 months after being diagnosed without any treatment.CONCLUSION WT-associated lymphoma is a very rare neoplasm in the parotid gland.Most cases are B cell non-Hodgkin lymphomas and involve middle-age and older males.This case highlights the extremely rare association of DLBCL arising from FL with WT and the importance of deliberate evaluation of the WT intraparenchymal stroma.Molecular detection techniques have potential advantages in the diagnosis of lymphoma with WT.

Adenoid cystic carcinoma of the Bartholin's gland:a case report and review of the literature

Adenoid cystic carcinoma(ACC) of the Bartholin's gland is a rare malignant tumor of vulvar which is characterized by slow growth,local invasion and perineural infiltration.The survival rates for 10 years range from 50% to 100%.The disease free interval for 10 years range from 33% to 38%.Currently,there is no consensus on the treatment of ACC of the Bartholin's gland.Primary surgery includes wide local excision or radical vulvectomy with or without lymph node dissection.Adjuvant radiotherapy and chemotherapy are advocated for the treatment of this cancer.Work is still needed to identify an effective systemic therapy.

Inverted cystic tubulovillous adenoma involving Brunner’s glands of duodenum

Benign neoplasia of the duodenum are very rare. Moreover, duodenal tubulovillous adenomas are more uncommon lesions. The microscopic structure of tubulovillous adenoma has frond-like projection of mucosa with branching papillary structure and generally upward growth into the lumen. We describe a 72-year-old man who showed aduodenal tubulovillous adenoma with unusual inverted cystic growth pattern. Interestingly, this tubulovillous adenomatous lesion was interrupted by gastric metaplasia in the deep portion of the cyst and was closely surrounded by Brunner’s glands. Although histogenesis of gastric metaplasia of duodenum is not fully understood, Brunner’s glands has been suggested as a precursor for gastric metaplasia. Therefore, these findings argued that this adenoma arises from Brunner’s glands through gastric metaplasia. This is the first case of inverted cystic tubulovillous adenoma involving Brunner’s glands of duodenum with gastric metaplasia.

Munc18/SNARE proteins’ regulation of exocytosis in guinea pig duodenal Brunner’s gland acini

AIM: To examine the molecular mechanism of exocytosis in the Brunner’s gland acinar cell. METHODS: We used a submucosal preparation of guinea pig duodenal Brunner’s gland acini to visualize the dilation of the ductal lumen in response to cholinergic stimulus. We correlated this to electron microscopy to determine the extent of exocytosis of the mucin-filled vesicles. We then examined the behavior of SNARE and interacting Munc18 proteins by confocal microscopy. RESULTS: One and 6 μmol/L carbachol evoked a dose- dependent dilation of Brunner’s gland acini lumen, which correlated to the massive exocytosis of mucin. Munc18c and its cognate SNARE proteins Syntaxin-4 and SNAP-23 were localized to the apical plasma membrane, and upon cholinergic stimulation, Munc18c was displaced into the cytosol leaving Syntaxin-4 and SNAP-23 intact. CONCLUSION: Physiologic cholinergic stimulation induces Munc18c displacement from the Brunner’s gland acinar apical plasma membrane, which enables apical membrane Syntaxin-4 and SNAP-23 to form a SNARE complex with mucin-filled vesicle SNARE proteins to affect exocytosis.

Brunner’s gland hyperplasia associated with lipomatous pseudohypertrophy of the pancreas presenting with gastrointestinal bleeding:A case report

BACKGROUND Brunner’s gland hyperplasia(BGH)is a rare benign lesion of the duodenum.Lipomatous pseudohypertrophy(LiPH)of the pancreas is an extremely rare disease.Because each condition is rare,the probability of purely coincidental coexistence of both conditions is extremely low.CASE SUMMARY We report a 26-year-old man presenting to our hospital with symptoms of recurrent upper gastrointestinal bleeding.Upper gastrointestinal endoscopy showed a huge pedunculated polypoid lesion in the duodenum with bleeding at the base of the lesion.Histopathological examination of the duodenal biopsy specimens showed BGH.Besides,abdominal computed tomography and magnetic resonance imaging revealed marked fat replacement over the entire pancreas,confirmed by histopathological evaluation on percutaneous pancreatic biopsies.Based on the radiological and histological findings,LiPH of the pancreas and BGH were diagnosed.The patient refused any surgical intervention.Therefore,he was managed with supportive treatment.The patient’s symptoms improved and there was no further bleeding.CONCLUSION This is the first well-documented case showing the coexistence of LiPH of the pancreas and BGH.

Effect of Chinese Herbal Medicine on Immunohistochemistry of Harder's Glands of Chickens

To investigate the mechanism of action of Chinese herbal medicine, the immunocells of Harder＇s glands were observed. The healthy Hy-Line Brown chickens of 12-day-old were divided into three groups randomly. The chickens in group 1 and 2 drank the water with 0.5% and 1% Chinese herbal medicine immunopromoter every day. The chickens in group 3 as control drank pure water. The Harder＇s glands of the chickens from 0.5% group, 1% group and control group at 24, 36 and 48 d after drinking medicine respectively were made into histological section. And then the histological sections were observed histologically. The results showed that Chinese herbal medicine could increase the quantity of the immunocells in glandular organs conspicuously. Immunopotentiator of Chinese herbal medicine could promote the amount and growth of secreted immunoglobuline and elevate the immune level of the orgamsm, and the effect of 1% group was higher than that of 0.5% group.

Bartholin’s Gland Carcinomas: A 20 plus-year experience from Queensland

Objective: To review the records of cases of Bartholin’s Gland Carcinoma referred to the Queensland Centre for Gynaecological Cancer (QCGC) between mid 1993 and mid 2012. Methods: Bartholin’s Gland Carcinoma case data from QCGC were reviewed and analysed using the computer software Statistical Package for the Social Sciences 11.0. Results: Of the 12 cases four died of their disease, seven are still alive and disease free and one is alive with recurrent disease. The mean age at diagnosis was 52.8 years. Time from onset of symptoms to diagnosis averaged 5.8 months. All diagnoses were confirmed histologically. Presenting symptoms included a lump and pain. The most common presenting complaint was a lump. Treatment included surgical excision, occasional biopsy followed by radiotherapy with or without chemotherapy. In some cases radiation and chemotherapy was followed by vulvectomy of various extent. Conclusions: Bartholin’s Gland Carcinoma is a rare condition with outcome dependent on duration of symptoms, including delay in diagnosis, cell-type, cellular differentiation and the International Federation of Gynecology and Obstetrics (FIGO) classification. A Bartholin’s gland mass in a woman aged 40 years or more should be considered malignant until a biopsy proves otherwise.The incidence of Bartholin’s Gland Carcinoma in Queensland is less than that reported elsewhere but a higher proportion of squamous cell carcinomas was found in this small series.

NF-κB Controls Resistance of Human Salivary Gland (HSG) Cells to Apoptosis in an <i>in Vitro</i>Model of Sjogren’s Syndrome

Aim: To elucidate the anti-apoptotic properties of nuclear factor kappa light-chain-enhancer of activated B cells (NF-κB) and feedback regulation of NF-κB by nuclear factor of kappa light-chain-enhancer of activated B-cells inhibitor alpha (IκBα). Methods: We developed an in vitro model of Sjogren’s syndrome by transfecting human salivary gland (HSG) and acinar cells (NS-SV-AC) with a plasmid-encoding IκBαM (pCMV-IκBαM), a degradation-resistant IκBα (nuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor, alpha)-mutant, and examined TNF-induced apoptosis and anti-apoptotic properties of NF-κB. Apoptosis and induction of pro-apoptotic and anti-apoptotic genes were investigated by cDNA arrays, RT-PCR, electrophoretic mobility shift assays, and western blot. Results: In the presence of NF-κB inhibitors, TNF-induced apoptosis was markedly increased in both salivary gland and acinar cells. Increased caspase-3 activity was present in both HSG and NS-SV-AC cells. IκBαM-transfected salivary gland cells were more sensitive to TNF-induced apoptosis than IκBαM-transfected acinar cells. Transcription of pro-apoptotic genes was confirmed in both HSG and NS-SV-AC cells that were transfected with IκBαM. Results from caspase-3 activity assay confirmed previous experiments showing an apoptotic role for NF-κB. Conclusion: Data from gene expression arrays suggest that different mechanisms may operate during TNF-induced apoptosis in salivary gland ductal and acinar cells.

Cyclooxygenase-2 S-nitrosylation in salivary gland acinar cell inflammatory responses to <i>Porphyromonas gingivalis</i>: modulatory effect of ghrelin

Disturbances in nitric oxide synthase (NOS) system and the excessive prostaglandin (PGE2) generation are well-recognized features of oral mucosal inflammatory responses to periodontopathic bacterium, P. gingivalis. Employing rat sublingual gland acinar cells, we show that P. gingivalis LPS-induced up-regulation in PGE2 generation and the enhancement in inducible (i) iNOS activity was associated with COX-2 activation through S-nitrosylation, and accompanied by the suppression in cSrc activity and the impairment in constitutive (c) cNOS phosphorylation. Further, we demonstrate that the countering effect of peptide hormone, ghrelin, on the LPS-induced changes was reflected in the increased cNOS activation through phosphorylation, repression in iNOS induction, and the reduction in PGE2 generation associated with the loss of COX-2 protein S-nitrosylation. Moreover, the effect of ghrelin on cNOS phosphorylation and the LPS-induced COX-2 S-nitrosylation was susceptible to the blockage by cSrc inhibition. Our findings suggest that P. gingivalis-induced up-regulation in iNOS leads to COX-2 S-nitrosylation and up-regulation in PGE2 generation, and that the countering effect of ghrelin is mediated through Src-dependent cNOS activation that is obligatory for the maintenance of iNOS gene suppression.

自拟清热润目汤联合朱氏风池三针法配合眼周取穴对老年睑板腺功能障碍致干眼的治疗效果

目的探究自拟清热润目汤联合朱氏风池三针法配合眼周取穴对老年睑板腺功能障碍致干眼的治疗效果。方法将2021年8月至2023年8月浙江省丽水市中心医院眼科收治的109例老年睑板腺功能障碍致干眼患者作为研究对象。根据患者接受的不同治疗方式进行分组,将接受常规西药治疗的患者纳入A组(53例),将接受西药治疗和自拟清热润目汤联合朱氏风池三针法配合眼周取穴治疗的患者纳入B组(56例),2组均治疗3个月。对比2组患者的治疗有效性、干眼程度[国际标准眼表疾病指数(OSDI)]、睑板腺功能(睑脂排出能力、眼睑分泌物性状)、角膜染色情况、非入侵泪膜破裂时间和并发症发生率(角膜溃疡、角膜穿孔、继发细菌感染)。结果B组的治疗有效率(95%)高于A组(81%)(P<0.05);B组患者的干眼程度[正常(63%)、轻度干眼(32%)、中度干眼(5%)、重度干眼(0)]低于A组[正常(41%)、轻度干眼(47%)、中度干眼(8%)、重度干眼(4%)](P<0.05);B组患者的睑脂排出能力正常率(73%)高于A组(51%),眼睑分泌物性状正常率(68%)高于A组(47%)(P<0.05);B组患者的角膜染色评分(4.6±0.7)分低于A组(6.5±0.8)分,非入侵泪膜破裂时间(11.0±1.3)s长于A组(10.3±1.1)s(P<0.05);B组并发症发生率(13%)与A组(8%)差异无统计学意义(P>0.05)。结论自拟清热润目汤联合朱氏风池三针法配合眼周取穴对老年睑板腺功能障碍致干眼的疗效显著,可有效缓解干眼症状、恢复眼睑功能、增强泪膜稳定性。

耳后隐蔽切口与改良S切口在良性腮腺肿瘤切除术中的应用价值比较

目的比较耳后隐蔽切口与改良S切口在良性腮腺肿瘤切除术中的应用价值。方法良性腮腺肿瘤患者120例,随机分为耳后隐蔽切口组和改良S切口组各60例。观察手术情况、术后并发症及复发情况,并比较两组手术前后的焦虑自评量表(SAS)和抑郁自评量表(SDS)评分。结果两组患者手术时间、术中出血量、术后引流量、Frey's综合征、耳部皮肤麻木、暂时性面瘫、感染和涎瘘等并发症发生率及复发率比较,差异均无统计学意义(P>0.05)。两组均无发生永久性面瘫和术后出血的病例。术后6个月,耳后隐蔽切口组的SAS评分及SDS评分较前降低(P<0.05),而改良S切口组SAS评分及SDS评分较前升高(P<0.05)。术后6个月,耳后隐蔽切口组患者的SAS评分及SDS评分均低于改良S切口组(P<0.05)。结论与改良S切口相比,耳后隐蔽切口行良性腮腺肿瘤切除术安全有效,并改善患者术后的焦虑和抑郁情绪。

V形切口与"S"形切口对腮腺良性肿瘤患者的美容效果研究

目的:探究V形切口与"S"形切口对腮腺良性肿瘤患者的美容效果。方法:选取2018年9月至2021年3月我院收治的腮腺良性肿瘤患者189例,按照随机数字法分为S组(94例)、V组(95例),S组给予患者"S"形切口手术,V组给予患者V形切口手术。对比两组患者手术相关指标[手术时间、住院天数、出血量、切口长度、引流量];使用酶联免疫吸附法检测氧化应激相关因子[去甲肾上腺素(NE)、过氧氢化酶(Cor)、总抗氧化能力(TAC)],对比两组患者术后并发症发生率以及术后满意率。结果:与S组相比,V组出血量、引流量较少、切口长度较短(P<0.05);手术后两组患者NE、Cor、TAC水平上升,与S组相比,V组患者NE、Cor、TAC水平较低(P<0.05);S组、V组耳大神经损伤发生率相同,与S组相比,V组Frey综合征、术区凹陷性畸形发生率较低,两组并发症总发生率相比,差异具有统计学意义(P<0.05);与S组相比,V组患者治疗满意率较高(P<0.05)。结论:使用V形切口手术对腮腺良性肿瘤患者进行治疗,能够较少术中出血量,缩短切口的长度,减少并发症的发生,增加患者满意率,有着较好的美容效果。

干燥综合征的腮腺MSCT特征分析

目的探讨干燥综合征腮腺MSCT特征及临床诊断价值。方法收集54名接受MSCT检查患者,其中包括38名临床确诊干燥综合征患者,并选择26名非干燥综合征患者作为对照组。图像由两位医师分别进行分析,对CT图像信息如腮腺不均质性、脂肪异常沉积、弥漫斑点片钙化、肿大或萎缩、是否合并结节或囊肿改变等进行评价和统计;并对上述指标绘制ROC曲线,明确其诊断效能。结果 38例SS患者腮腺MSCT图像,38例(100%)均表现为腮腺不均质性,36例(94.7%)表现为腮腺脂肪异常沉积,10例(26.3%)表现为双侧腮腺弥漫性斑点钙化灶,11例表现为腮腺肿大,18例腮腺萎缩。ROC曲线显示SD和脂肪异常沉积具有较高的诊断效能,线下面积分别为0.970和0.945,当SD取15.09,诊断SS的敏感度和特异性分别为94.7%和100%;脂肪异常沉积为I级时诊断敏感性和特异度分别为94.7%和96.2%。结论腮腺CT是诊断SS一种可靠、准确的技术。腮腺不均质性、脂肪异常沉积、腮腺弥漫性斑点钙化对SS诊断具有较高的价值。