Huntington's disease with severe neck infection.

OBJECTIVE: To present a case of Huntington's disease (HD) with severe neck infection. BACKGROUND: Huntington's disease (HD) is a progressive neurodegenerative genetic disorder and is often accompanied by dysphagia. MATERIALS AND METHODS: The patient was a 64-year-old man with HD. The severe neck infection was considered as one of the symptoms of HD. CONCLUSION: Clinicians should remember that patients with HD are apt to delay dental consultation, resulting in serious oral infections.

Absceso submandibular producido por caries dental / Submandibular abscess produced by dental caries

La caries dental es una enfermedad bacteriana destructiva de las estructuras dentales producida por microorganismos que forman parte de la flora bucal. Es la enfermedad infecciosa más común en la infancia. Presentamos el caso de una niña de tres años que acudió por dolor y flemón dentario, por caries localizada en el segundo molar temporal inferior derecho que, a pesar del tratamiento antibiótico y siguiendo una evolución tórpida, evolucionó a un absceso submandibular fluctuante que precisó drenaje y antibioterapia con resolución definitiva a los dos meses tras la exodoncia de la pieza dental. La caries es la patología más prevalente en la infancia, que además de problemas locales, constituye la puerta de entrada de infecciones a distancia, lo que condiciona su importancia sociosanitaria. La primera visita al dentista debería realizarse en el primer año de vida, como defiende la Sociedad Española de Odontopediatría. Se hace necesario un esfuerzo por parte del pediatra y/u odontólogo en las acciones de promoción de la salud y tratamiento de las enfermedades dentales que redunden en una disminución de prevalencia de la caries dental y evitar sus complicaciones (AU)

Dental caries is a destructive bacterial disease of dental structures produced by microorganisms that are part of the oral flora. It is the most common infectious disease in childhood. We report the case of a three-year-old girl who presented with pain and tooth abscess, caries located at the lower right second temporal molar, that, in spite of antibiotic treatment, was followed by a torpid evolution, and evolved into a submandibular fluctuating abscess that required drainage and antibiotics to its final resolution two months after the extraction of the tooth. Tooth decay is the most common disorder in preschool and school children, and, in addition to local problems, is the gateway to systemic infections, which determines its social-healthcare relevance. The first dental visit should take place in the first year of life, as the Odontopediatric Spanish Society recommends. It is necessary a positive reinforcement by the doctor and/or dentist that helps to decrease the prevalence of dental caries and its complications (AU)

Canine Trichomonas tenax mandibular gland infestation.

BACKGROUND: Several species of trichomonads are intestinal or urogenital parasites of humans and animals, with only a few species typically being located in the oral cavity. The prevalence of oral trichomoniasis in dogs is approximately 15-25 %, although the prevalence varies among different populations and depends on age, sex and the health of the oral cavity. CASE PRESENTATION: A case of mandibular gland infestation by trichomonads in a 13-year-old female Dachshund with advanced periodontal disease and oral trichomoniasis is reported. The dog was referred due to a history of a painless swelling over the left submandibular region that increased in size over time. Based on physical and ultrasound examinations, a final diagnosis of mandibular gland cyst was established and transcutaneous needle aspiration was carried out. Numerous mobile trophozoites of trichomonads were found by microscopy and culturing for trichomonas was performed. The species was finally characterized as Trichomonas tenax by polymerase chain reaction and sequencing. CONCLUSIONS: Studies have shown that T. tenax can be found in humans in atypical locations such as the salivary glands and upper and lower respiratory tracts. According to our knowledge this is the first report of T. tenax being present in the salivary glands of a dog. Because of the relatively high prevalence of trichomoniasis in dogs with periodontal diseases, these parasites should be considered together with bacterial and viral agents in salivary gland infections, especially in individuals with compromised oral health.

[A large sialolith in the parenchyma of the submandibular gland accompany with soft tissue infection of submandibular region: a rare case report].

A case of an unusually large sialolith arising in the parenchyma of submandibular gland accompany with infection is presented, computered tomography identified a sialolith in the submandibular gland. Surgery on the sialolith was subsequently completed under general anesthesia extraorally. A brownish stone was present in the parenchyma of the submandibular gland, measuring 33 mm×25 mm.

The importance of early intervention in the treatment of dental infection.

UNLABELLED: With recent reports of increasing hospital admissions relating to dental infection, the authors believe it is time to re-visit the importance of its effective early treatment. A series of three cases is used to illustrate the potentially life-threatening progression of what, in the early stages, is an easily treatable condition. CLINICAL RELEVANCE: The principles of effective management of dental infection are highlighted in the first instance and then indications for specialist maxillofacial referral are discussed.

Submandibular gland megalith eroding the floor of the mouth: a case report.

Sialolithiasis is the most common pathologic condition affecting the salivary glands. However, large sialoliths (megaliths) are considered rare. The submandibular glands are more susceptible to stone formation than are the other salivary glands. We describe the case of a 55-year-old man with an unusually large sialolith that had eroded the floor of the mouth.

Thyroid hemiagenesis, ectopic submandibular thyroid tissue, and apparent persistent subclinical thyrotoxicosis.

BACKGROUND: Ectopic thyroid tissue (ETT) is a rare embryological abnormality characterized by the occurrence of thyroid tissue in a site other than its usual location. Thyroid hemiagenesis (HA) is also a very rare abnormality in which one thyroid lobe does not develop properly during embryology. We report a patient with left HA, submandibular ETT, and persistent mildly suppressed serum thyrotropin (TSH). PATIENT: A 38-year-old female patient was admitted with complaints of sweating and palpitations. She had no symptoms of neck compression. Thyroid ultrasonography revealed heterogeneity and hypoechogenicity of the right lobe and absence of the left lobe, the latter being confirmed by computed tomography. There was no ETT in the neck. A thyroid Tc-99m pertechnetate scan demonstrated two distinct areas of radiotracer uptake, one in the right lobe of the thyroid gland and one in the right submandibular region and lobe, but no uptake in the left thyroid bed. The serum free triiodothyronine was 2.89 pg/mL (2.5-3.9 pg/mL), and the serum free thyroxine was 0.86 ng/dL (0.61-1.12 ng/mL). The serum TSH was 0.11 mIU/L (0.34-5.60 mIU/L). CONCLUSIONS: This may be the first reported patient with HA and submandibular ETT. The patient probably also had thyroiditis with mild intermittent thyrotoxicosis based on her suppressed TSH and ultrasonography imaging of the right thyroid lobe.

Unusual involvement of IgG4-related sclerosing disease in lacrimal and submandibular glands and extraocular muscles.

Chronic sclerosing sialadenitis, also known as Kuttner tumor, is a chronic inflammatory disease of the salivary glands that is reported in a few cases in medical literature. Recent reports suggest that certain aspects of sclerosing diseases, including chronic sclerosing sialadenitis or dacryoadenitis, should be classified under immunoglobulin G4 (IgG4)-related sclerosing disease based on immunohistochemical studies. This study reports an unusual case of IgG4-related sclerosing disease appearing simultaneously in the lacrimal glands, submandibular glands, and extraocular muscles. A 56-year-old male presented with complaints of bilateral eyelid swelling and proptosis that began two years ago. Computed tomography confirmed that bilateral submandibular enlargements also existed five years ago in the subject. Orbital computed tomography and magnetic resonance imaging revealed bilateral lacrimal gland enlargement and thickening of extraocular muscles. Typical findings of chronic sclerosing dacryoadenitis were revealed upon pathologic exam of the right lacrimal gland. Immunostaining revealed numerous IgG4-positive plasma cells. Through these clinical features, we make a diagnosis of IgG4-relataed sclerosing disease in the subject.

A case of a giant submandibular gland calculus perforating the floor of the mouth.

Sialolithiasis is characterized by the obstruction of salivary gland secretion by a calculus. It is associated with swelling, pain, and infection of the affected gland. More than 80% of all salivary calculi occur in the submandibular gland. One reason for this is the makeup of the saliva in the submandibular gland, which includes a higher mucus content, a greater degree of alkalinity, and greater concentrations of calcium and phosphate salts compared with the saliva of the parotid and sublingual glands. Other factors are that its duct is longer and its saliva flows against gravity. Sialoliths that reach several centimeters in diameter (megaliths, or giant calculi) are rare. Perforation of the floor of the mouth by a giant calculus is extremely rare. We report such a case in a 56-year-old man who presented with a 2-day history of severe pain in the left sublingual area and painful swelling in the left submandibular area. Removal of the stone and the left submandibular gland was performed via an extraoral incision. On gross examination, the sialolith measured 5.6 cm.

Involvement of toll-like receptors in autoimmune sialoadenitis of the non-obese diabetic mouse.

The aim of this study was to characterize the expression of Toll-like receptors (TLRs) during the development of sialoadenitis in the non-obese diabetic mouse. Submandibular glands were dissected from non-obese diabetic mice at 4, 8, 10, 12, and 16 weeks of age. The mRNA expression levels of TLR1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, MyD88, and TRIF was quantified using real-time reverse transcription polymerase chain reaction. The mRNA expression levels in 4-week-old non-obese diabetic mice were used as controls. The expression levels of TLR1, 2, 4, and 9 were significantly higher at 8, 10, 12, and 16 weeks than the levels in the controls. The expression level of TLR3 was significantly higher at 16 weeks than in the controls. A group of mice were given drinking water containing 4.75% chloroquine starting at 4 weeks. Chloroquine caused a significant decrease in the expression of TLR1, 2, 3, 4, and 9 at 16 weeks compared with control mice who did not receive chloroquine. The areas of lymphocyte infiltration seen on serial sections of submandibular glands in the mice receiving chloroquine were significantly smaller than the areas of infiltration in control glands. Increased expression of Toll-like receptors may be involved in the development and/or progression of sialoadenitis in the non-obese diabetic mouse. Toll-like receptors may be a therapeutic target for autoimmune sialoadenitis.

Unusual Involvement of IgG4-Related Sclerosing Disease in Lacrimal and Submandibular Glands and Extraocular Muscles

Chronic sclerosing sialadenitis, also known as Kuttner tumor, is a chronic inflammatory disease of the salivary glands that is reported in a few cases in medical literature. Recent reports suggest that certain aspects of sclerosing diseases, including chronic sclerosing sialadenitis or dacryoadenitis, should be classified under immunoglobulin G4 (IgG4)-related sclerosing disease based on immunohistochemical studies. This study reports an unusual case of IgG4-related sclerosing disease appearing simultaneously in the lacrimal glands, submandibular glands, and extraocular muscles. A 56-year-old male presented with complaints of bilateral eyelid swelling and proptosis that began two years ago. Computed tomography confirmed that bilateral submandibular enlargements also existed five years ago in the subject. Orbital computed tomography and magnetic resonance imaging revealed bilateral lacrimal gland enlargement and thickening of extraocular muscles. Typical findings of chronic sclerosing dacryoadenitis were revealed upon pathologic exam of the right lacrimal gland. Immunostaining revealed numerous IgG4-positive plasma cells. Through these clinical features, we make a diagnosis of IgG4-relataed sclerosing disease in the subject.

Ectopic, submandibular thyroid causing hyperthyroidism.

BACKGROUND: Ectopic thyroid tissue in the submandibular region is exceptionally rare. Nevertheless, the treating physician should consider this condition within the differential diagnosis of a submandibular mass. METHOD: Case report of ectopic thyroid tissue presenting as a submandibular mass in a patient with hyperthyroidism, together with a review of the English-literature concerning ectopic thyroid tissue. CONCLUSION: To our knowledge, this is the first report of ectopic thyroid tissue presenting as a submandibular mass and causing hyperthyroidism. Removal of the submandibular mass resulted in normalisation of thyroid function, and subsequent reduction in the patient's antithyroid medication dosage. Ectopic thyroid tissue should be suspected in any patient with a submandibular mass. Prior to resection of such a lesion, it is essential to ensure that normal, functioning thyroid tissue is present elsewhere. Ectopic thyroid tissue can also present with pathology similar to that affecting the normal thyroid gland.

Viruses and salivary gland disease (SGD): lessons from HIV SGD.

Viral infections are often associated with salivary gland pathology. Here we review the pathogenesis of HIV-associated salivary gland disease (HIV-SGD), a hallmark of diffuse infiltrative lymphocytosis syndrome. We investigate the presence and contributions of viral diseases to the pathogenesis of salivary gland diseases, particularly HIV-SGD. We have detected BK viral shedding in the saliva of HIV-SGD patients consistent with viral infection and replication, suggesting a role for oral transmission. For further investigation of BKV pathogenesis in salivary glands, an in vitro model of BKV infection is described. Submandibular (HSG) and parotid (HSY) gland salivary cell lines were capable of permissive BKV infection, as determined by BKV gene expression and replication. Analysis of these data collectively suggests the potential for a BKV oral route of transmission and salivary gland pathogenesis within HIV-SGD.

Atresia of the submandibular duct orifices: an unusual cause of feeding problems and failure to thrive in an infant.

UNLABELLED: Atresia of the submandibular duct orifice is a rare developmental anomaly, which causes swelling of the duct by accumulation of saliva. The cystic mass in the floor of the mouth can cause feeding problems, which can be treated by surgical opening of the duct. We report the first Swedish case in a male infant, who had severe difficulties to feed because of bilateral swellings of the submandibular ducts caused by orifice atresia. CONCLUSION: This is the first case that has described failure to thrive because of this condition and catch up after treatment. It is important to remember that evaluation of feeding problem in an infant must include inspection of the oral cavity.

Neonatal hyperthyroidism associated with isolated submandibular sialadenitis: is it just a coincidence?

Isolated submandibular sialadenitis is extremely rare in the neonatal period. All reported cases had predisposing factors such as prematurity, dehydration, anatomic deformities, calculi, and long-term oro-gastric tube feeding. Here, we present a case of neonatal isolated submandibular sialadenitis without any known risk factors and who was diagnosed later with hyperthyroidism secondary to maternal Graves' disease. Both sialadenitis and hyperthyroidism resolved with appropriate treatment. While both conditions are rare and important in neonatal emergency care, the possibility of neonatal hyperthyroidism should be explored in cases with isolated sialadenitis if there is no other risk factor. Possible mechanisms for this uncommon association are discussed.