Bilateral aplasia of parotid glands correlated with accessory parotid tissue

2006 ◽  
Vol 120 (4) ◽  
pp. 327-329 ◽  
Author(s):  
D Z Antoniades ◽  
A K Markopoulos ◽  
E Deligianni ◽  
D Andreadis
Keyword(s):  
Parotid Gland ◽  
Salivary Glands ◽  
Branchial Arch ◽  
Interesting Case ◽  
Rare Entity ◽  
Parotid Glands ◽  
Radiological Findings ◽  
Salivary Gland Tissue ◽  
Developmental Disturbances ◽  
Gland Tissue

Congenital absence of major salivary glands, especially the parotid gland, is a rare entity. It is usually monolateral and is not correlated with accessory salivary gland tissue. Aplasia of parotid gland may occur alone or in association with abnormalities of other salivary glands, first branchial arch developmental disturbances or other congenital anomalies.We report an interesting case of bilateral aplasia of the parotid glands together with bilateral accessory parotid tissue, without other congenital or developmental anomalies, and we describe the clinical and radiological findings.

Misplaced parotid glands: bilateral agenesis of parotid glands associated with bilateral accessory parotid tissue

2000 ◽  
Vol 114 (11) ◽  
pp. 883-885 ◽  
Author(s):  
Renee Flax-Goldenberg ◽  
Nathan Peled ◽  
David Goldenberg ◽  
Henry Zvi Joachims
Keyword(s):  
Parotid Gland ◽  
Rare Entity ◽  
Parotid Glands ◽  
Radiological Findings

Agenesis of the parotid is a rare entity. It is usually unilateral but bilateral cases have been described as a rare cause of xerostomia. Accessory parotid tissue is also uncommon and is not normally associated with aplasia of the parotid gland. The embryological, histological, clinical and radiological findings of these two entities will be discussed in addition to the report of an obscure case of bilateral parotid agenesis together with bilateral accessory parotid tissue.

FUNCTIONAL DISORDERSOF THE SALIVARY GLANDS IN PATIENTS WITH COMPRESSION AND DISLOCATION DYSFUNCTION OF THE TEMPOROMANDIBULAR JOINT AND THEIR CORRECTION

2021 ◽  
Vol 74 (7) ◽  
pp. 1695-1698
Author(s):  
Oleg V. Rybalov ◽  
Pavel I. Yatsenko ◽  
Olga Yu. Andriyanova ◽  
Elena S. Ivanytska ◽  
Maria A. Korostashova
Keyword(s):  
Parotid Gland ◽  
Salivary Glands ◽  
Functional State ◽  
Oral Fluid ◽  
Healthy Individuals ◽  
Parotid Glands ◽  
Posterior Teeth ◽  
Fluid Content ◽  
Lower Jaw ◽  
Before And After

The aim: Is to assess the functional state of parotid glands and general secretion in patients with compression, dislocation dysfunction of TMJ, to correct the revealed disorders. Materials and methods: We examined 46 patients with dysfunction of TMJ. Examination included TMJ zonography and salivary glands sonography. We studied the general and parotid secretion, transparency, viscosity, pH of the oral fluid and the secretions of the parotid glands before and after treatment. The treatment of dysfunction and hyposialosis included the repositioning of the articular heads of the lower jaw in the correct anatomical position, the use of a repositioning plate on the posterior teeth at the compression side of the articular head, bougienage of the duct of the parotid gland, administration of 10% magnesium-mineral solution of bischofite into the gland. Results: In patients with TMJ dysfunction, a significant decrease in the oral fluid content was noted before treatment. The saliva transparency was reduced, the viscosity was increased, the pH was slightly acidic. A study, which was carried out a month after completion of the course of treatment showed that all the studied parameters corresponded to those in healthy individuals. Conclusions: The study confirmed that in compression and dislocation dysfunction of TMJ, there are disorders of the functional state of the salivary glands.

scholarly journals IS THERE AN EARLY ULTRASONOGRAPHIC PATTERN IN SALIVARY GLANDS IN BOTH PRIMARY AND SECONDARY SJÖGREN SYNDROME?

2017 ◽  
Vol 26 (1) ◽  
pp. 30-37
Author(s):  
Vasilia Iorgoveanu ◽  
◽  
Violeta Bojinca ◽  
Madalina Gheorghe ◽  
Diana Mazilu ◽  
...  
Keyword(s):  
Parotid Gland ◽  
Salivary Glands ◽  
Early Period ◽  
Sjögren Syndrome ◽  
Biological Data ◽  
Inflammatory Disorder ◽  
Sjogren Syndrome ◽  
Parotid Glands ◽  
Submandibular Glands ◽  
Left And Right

Background. Sjögren syndrome (SS) is a systemic chronic inflammatory disorder characterized by lymphocytic infiltrates in exocrine organs. Ultrasonography (US) demonstrates specificity and sensibility in major salivary glands (SG) evaluation. Recent data confirm US might be used as primary evaluation technique for its ability to show structural alterations of parenchyma (1). Objective. To assess the gray scale (GS) parenchymal inhomogeneity of major SG in patients with established primary and secondary SS and correlate with clinical and biological data. Methods. Consecutive patients with SS were recruited and SG US was performed. Inhomogeneity of glandular parenchyma was quantified binary on each gland. ESSDAI and ESSPRI scores were calculated. Statistics was performed with SPSS. Results. Twenty one (42.85% primary SS, 90.47% female) consecutive patients were included. Mean age was 53.66+/-12.99 years and disease duration 5.33+/-3.74 years. Antibody SSA/SSB presence was found in 85.7% (18/21). ESSDAI mean was 8.67+/-8.9 (0-29), ESSPRI 10.13+/-5.59(0-20). There were no differences regarding ESSDAI and ESSPRI in the two groups (primary and secondary SS). Right parotid gland showed alterations in 71.4% patients (77% with primary SS, 66% with secondary SS). Frequently inhomogeneity was found in all major SG (33%, 22% left and right submandibular, 77%, 44.4% left and right parotid glands) in primary SS. Both submandibular glands were symmetrically involved (p<0.02). Duration of disease was negatively correlated to inhomogeneity of right parotid gland (p<0.02). Conclusion. Inhomogeneity in major SG in GS US was found in the majority of patients with primary and secondary SS. The symmetrical involvement of submandibular glands was significant. The inhomogeneity appears in the early period of diagnosis. No major differences were found between two groups.

scholarly journals Epigenetically quantified immune cells in salivary glands of Sjögren’s syndrome patients: a novel tool that detects robust correlations of T follicular helper cells with immunopathology

Rheumatology ◽  
2019 ◽  
Vol 59 (2) ◽  
pp. 335-343 ◽  
Author(s):  
Sofie L M Blokland ◽  
Fréderique M van Vliet-Moret ◽  
Maarten R Hillen ◽  
Aridaman Pandit ◽  
Roel Goldschmeding ◽  
...  
Keyword(s):  
Salivary Gland ◽  
B Cell ◽  
Salivary Glands ◽  
Immune Cells ◽  
Cell Counting ◽  
Tissue Cell ◽  
Tfh Cells ◽  
Follicular Helper ◽  
Salivary Gland Tissue ◽  
Gland Tissue

Abstract Objective To investigate whether epigenetic cell counting represents a novel method to quantify immune cells in salivary glands of patients with different forms of Sjögren’s and sicca syndrome and to capture immunopathology and potentially aid in diagnosis. Methods DNA from frozen salivary gland tissue sections of sicca patients was used for bisulphite conversion of demethylated DNA cytosine residues, followed by cell-specific quantitative PCR to calculate cell percentages in relation to total tissue cell numbers as quantified by housekeeping gene demethylation. The percentages of epigenetically quantified cells were correlated to RNA expression of matched salivary gland tissue and histological and clinical parameters. Results The percentages of epigenetically quantified CD3, CD4, CD8, T follicular helper (Tfh) cells, FoxP3+ regulatory T cells and B cells were significantly increased in the salivary glands of patients with SS. Unsupervised clustering using these percentages identified patient subsets with an increased lymphocytic focus score and local B cell hyperactivity and classifies patients different from conventional classification criteria. In particular, Tfh cells were shown to strongly correlate with the expression of CXCL13, lymphocytic focus scores, local B cell hyperactivity and anti-SSA positivity. Conclusion Epigenetic cell counting is a promising novel tool to objectively and easily quantify immune cells in the labial salivary gland of sicca patients, with a relatively small amount of tissue needed. In view of the potential of this technique to include a huge number of (cell-specific) biomarkers, this opens up new standardized ways of salivary gland analysis with high relevance for patient classification, understanding of immunopathology and monitoring of drug responses in clinical trials.

Biophysical and Morphological Properties of Parasympathetic Neurons Controling the Parotid and von Ebner Salivary Glands in Rats

2005 ◽  
Vol 93 (2) ◽  
pp. 678-686 ◽  
Author(s):  
Hideyuki Fukami ◽  
Robert M. Bradley
Keyword(s):  
Parotid Gland ◽  
Salivary Glands ◽  
Membrane Properties ◽  
Morphological Properties ◽  
Similar Response ◽  
Parotid Glands ◽  
Membrane Hyperpolarization ◽  
Parasympathetic Neurons ◽  
Discharge Patterns ◽  
Repetitive Discharge

The inferior salivatory nucleus (ISN) contains parasympathetic neurons controlling the parotid and von Ebner salivary glands. To characterize the neurophysiological and morphological properties of these neurons, intracellular recordings were made from anatomically identified ISN neurons in rat brain slices. Neurons were also filled with Lucifer yellow and morphometrically analyzed. Based on responses to membrane hyperpolarization followed by depolarization, three types of repetitive discharge patterns were defined for neurons innervating the parotid gland. The regular, repetitive discharge response to membrane depolarization was changed by hyperpolarization resulting either in a delay in the occurrence of the first spike or to an increase in the length of the first interspike interval in the action potential train. Membrane hyperpolarization had little effect on the discharge pattern of some neurons. Similar response discharge patterns were found for neurons innervating the von Ebner salivary gland, which also included a further group of neurons that responded with a short burst of action potentials. Neurons innervating the parotid salivary glands differed morphologically from the von Ebner salivary glands having significantly larger soma and more and longer dendrites than von Ebner gland neurons. In addition, the mean membrane input resistance, time constant, and spike half-width of parotid gland neurons was significantly lower than in von Ebner gland neurons. These differences in intrinsic membrane properties and morphology may relate to the functions of the von Ebner and parotid glands. von Ebner glands are involved in taste stimulus delivery and removal from posterior tongue papillae while the parotid glands contribute saliva to the entire mouth.

scholarly journals Activity, distribution and regulation of phosphofructokinase in salivary gland of rats with streptozotocin-induced diabetes

2006 ◽  
Vol 20 (2) ◽  
pp. 108-113 ◽  
Author(s):  
José Nicolau ◽  
Douglas Nesadal Souza ◽  
Fernando Neves Nogueira
Keyword(s):  
Parotid Gland ◽  
Salivary Glands ◽  
Specific Activity ◽  
Active Form ◽  
Diabetic Rats ◽  
Phosphate Content ◽  
Soluble Enzyme ◽  
Parotid Glands ◽  
Streptozotocin Induced Diabetes ◽  
And Control

Although the influence of diabetes on salivary glands is well studied, it still presents conflicting results. In this work, the regulation of the phosphofructokinase-1 enzyme (PFK-1) was studied utilizing the salivary glands of rats. Diabetes was induced by a single intraperitoneal injection of streptozotocin (60 mg/Kg of body weight) in rats (180-200 g). The animals were killed 30 days after the induction of diabetes and the submandibular and parotid salivary glands were used. Hyperglycemia was evaluated by blood sugar determination. The distribution of PFK-1 between the soluble and cytoskeleton fractions, the phosphate content of PFK-1, the content of fructose-2,6-bisphosphate and the activity of the PFK-2 enzyme were determined. The calculated relative glandular weight showed a higher value for the parotid gland in comparison with the control, but not for the submandibular gland. The activity of PFK-1 expressed per gland showed no variation between diabetic and control animals. However, considering the specific activity, the soluble enzyme presented a value 50% higher than that of the control and the cytoskeleton bound form increased by 84% compared to the control. For the parotid gland, no difference in the specific activity between diabetic and control animals was observed. On the other hand, the activity per gland of the soluble enzyme increased in the diabetic animals. The phosphate content of PFK-1 increased in the submandibular and parotid glands of diabetic rats. Both the content of fructose-2,6-bisphosphate and the active form of PFK-2 were reduced in the diabetic glands. In conclusion, the increase in the activity of PFK-1 observed in the salivary glands of rats with streptozotocin-induced diabetes does not seem to be due to its modulator fructose-2,6-bisphosphate.

Further Research Needed to Understand Relationship Between Tubarial Glands and Eustachian Tube Dysfunction

2021 ◽  
pp. 019459982110042
Author(s):  
Matthew J. Wu ◽  
Renata M. Knoll ◽  
Divya A. Chari ◽  
Aaron K. Remenschneider ◽  
William C. Faquin ◽  
...  
Keyword(s):  
Salivary Gland ◽  
Salivary Glands ◽  
Clinical Significance ◽  
Eustachian Tube ◽  
Eustachian Tube Dysfunction ◽  
Future Studies ◽  
Salivary Gland Tissue ◽  
Patient Morbidity ◽  
Gland Tissue ◽  
Tube Dysfunction

The pathophysiology of eustachian tube dysfunction (ETD) remains poorly characterized, and it may result in significant patient morbidity. A recent study has identified a collection of previously unidentified salivary glands in the nasopharynx that overlay the torus tubarius. While salivary gland tissue has been described in the nasopharynx, the newly discovered salivary gland tissue has been denoted tubarial glands (TGs) and theorized to be a distinct organ. The TGs have been suggested to aid in lubrication of the oropharynx and nasopharynx. However, the exact clinical significance of TGs is unknown. Given the proximity of the TG to the eustachian tube, it is possible that the TGs may be related to the development of ETD. Future studies of the TGs and related pathophysiology may improve approaches to developing future ETD treatments.

scholarly journals USE OF 29A MICRO-RNA FOR DIAGNOSIS OF PLEOMORPHIC ADENOMAS OF SALIVARY GLANDS

2020 ◽  
Vol 20 (1) ◽  
pp. 149-154
Author(s):  
I. S. Brodetskyi ◽  
V.A. Malanchuk ◽  
V. E Dosenko
Keyword(s):  
Salivary Gland ◽  
Salivary Glands ◽  
Pleomorphic Adenoma ◽  
Quantitative Polymerase Chain Reaction ◽  
Venous Blood ◽  
Micro Rna ◽  
Salivary Gland Tissue ◽  
Pleomorphic Adenomas ◽  
Gland Tissue ◽  
Benign Tumours

Introduction. Pleomorphic adenoma is known as the most common tumour in salivary glands that makes up 60-90% of all benign tumours of the salivary glands. The modern genetic tendency towards the diagnosis of salivary gland tumours is the study of the role of microRNA molecules, and miRNA-29a in the focus of the great researchers’ interest. It is expressed in 84 % of the pleomorphic adenomas of the salivary glands. Objectives. Determination of expression of miRNA-29a in tissues of pleomorphic adenomas of the large salivary glands that adjacent to the tumour of the tissue of the salivary gland, intact tissue of the salivary gland, was out of touch with the tumour and venous blood.  Materials and methods. The study included 20 patients with benign tumours of the large salivary glands (pleomorphic adenomas). The expression of miRNA-29a was evaluated by using reverse transcription and quantitative polymerase chain reaction (qPCR) in real time. Results. The analysis of the level of miRNA-29a expression revealed that among 4 groups of indicators (tumour tissue, tissues adjacent to the tumour salivary gland tissue, intact salivary gland, which was out of touch with the tumour and venous blood) in patients with pleomorphic adenoma of the large salivary gland, the highest expression was noted in the group, where salivary gland tissue was adjacent to the salivary gland tumour (111, 93±56, 97 versus 8,12±4,4). Correlation analysis of patients with pleomorphic adenoma of the large salivary glands with different fragments of tissues samples demonstrated that the expression level of miRNA-29a differed significantly between the groups (adjacent gland - intact salivary tissue). Conclusions. A sufficiently high level of miRNA-29a expression in the tissues of pleomorphic adenoma in the large salivary glands compared with the normal (intact salivary gland tissue), 10 times as much can be used as a genetic marker for verification (identification) of this type of tumours. Studies of biopsy material from patients with pleomorphic adenoma in the large salivary glands at the genetic level (by expression of miRNAs-29a) confirm the need not only in enucleating of the tumour (partial parotidectomy), but also in performing of subtotal resection with removal of salivary gland adjacent to the tumour.

Lymphoepithelial Carcinoma of the Parotid Glands and Its Relationship With Benign Lymphoepithelial Lesions

2008 ◽  
Vol 132 (2) ◽  
pp. 278-282 ◽  
Author(s):  
Manuela Schneider ◽  
Clara Rizzardi
Keyword(s):  
Parotid Gland ◽  
Salivary Glands ◽  
Malignant Tumors ◽  
Current Knowledge ◽  
Correct Diagnosis ◽  
Lymphocytic Infiltration ◽  
Lymphoepithelial Carcinoma ◽  
Parotid Glands ◽  
Neck Tumors ◽  
Lymphoepithelial Lesions

Abstract The salivary glands, despite their relatively simple morphology, give rise to more than 30 histologically distinct benign and malignant tumors. Salivary gland neoplasms comprise less than 2% of all tumors in humans and 3% of all head and neck tumors. They arise in the parotid gland in 80% of cases, and approximately 80% are benign and 20% are malignant. Among them are lymphoepithelial lesions, rare lesions of the salivary glands and especially of the parotid gland that are characterized by lymphocytic infiltration associated with an epithelial proliferation. They are divided into benign, which is considered as a tumorlike condition, and malignant, which is a rare carcinoma of the salivary glands. This article provides a review of the current knowledge on lymphoepithelial carcinoma with a look at its association with benign lesions and on the importance of making the correct diagnosis for the appropriate treatment.

Sialadenitis and Sialadenosis

2021 ◽  
pp. 136-157
Keyword(s):  
Salivary Gland ◽  
Parotid Gland ◽  
Salivary Glands ◽  
Bacterial Infections ◽  
Viral Infections ◽  
Fatty Infiltration ◽  
Kimura’S Disease ◽  
Parotid Glands ◽  
Chronic Sclerosing Sialadenitis ◽  
Underlying Disorder

In this chapter, the etiology and management of salivary gland inflammation (sialadenitis) and sialadenosis (sioalosis) are discussed. Causes of inflammatory disorders of the parotid gland include viral infections; bacterial infections; recurrent parotitis of childhood; papillary obstructive parotitis; granulomatous sialadenitis; autoimmune sialadenitis including Mickulicz disease, Sjogren's syndrome; and other autoimmune sialadenitis such as Wegener's granulomatosis, Kimura's disease, and chronic sclerosing sialadenitis. Sialadenosis is a chronic, diffuse, non-inflammatory, non-neoplastic disorder causing diffuse enlargement of salivary glands, usually the parotid glands. Grossly, there is only diffuse enlargement of the affected gland, and histologically, the condition is characterized by acinar hypertrophy and fatty infiltration. Patients present with painless, soft, and diffuse enlargement of both parotid glands. Treatment in the form of controlling the underlying disorder or withdrawing the incriminated drug helps sialosis to resolve.

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