Characterization of Salivary Gland Pain: A Review of the Literature / Caracterización del Dolor de Glándulas Salivales: Revisión de la Literatura

SUMMARY: The salivary glands in pathological conditions produce countless different clinical presentations, and due to their complex neuroanatomy, their pain symptoms vary widely. However, in the literature to date, few studies characterize salivary gland pain. The aim of this study was to conduct a literature review concerning the clinical characteristics of pain in various salivary gland pathologies. A literature review was done through a systematic search of scientific articles in the Web of Science (WoS), MEDLINE, Scopus, and Elton B. Stephens Company (EBSCO) databases. The free terms "salivary gland", "parotid gland", "submaxillary gland", "sublingual gland", and "pain" were used along with the Boolean operators OR and AND. The search yielded a total of 1896 articles, of which 60 fulfilled the inclusion criteria and were ultimately included in this review. It is described that pain is a nonspecific symptom of a glandular pathology and is characterized mainly by the location of the pain, which is correlated with the anatomical location of the affected salivary gland. Among the painful salivary gland pathologies, we found inflammatory disorders, including infections, obstructions, disorders secondary to hyposalivation; systemic autoimmune diseases; neoplasms, and neuropathic pain disorders. The diagnosis and management of salivary gland pain require knowledge of the causes and mechanisms of the pain, and it is to recognize the signs and symptoms of salivary gland disorders to be able to diagnose and treat them.

Las glándulas salivales en condiciones patológicas producen un sinfín de presentaciones clínicas diferentes, y debido a su compleja neuroanatomía generan variaciones en su sintomatología dolorosa. Sin embargo, en la literatura hasta ahora son escasos los estudios que caracterizan el dolor de glándulas salivales. El objetivo de este estudio fue realizar una revisión de la literatura respecto a las características clínicas del dolor en diversas patologías de glándulas salivales. Se realizó una revisión de la literatura, a través de la búsqueda sistemática de artículos científicos en las bases de datos Web of Science (WoS), MEDLINE, Scopus y Elton B. Stephens Company (EBSCO). A través de los términos libres: "salivary gland", "parotid gland", "submaxillary gland", "sublingual gland", "pain", junto con los operadores booleanos OR y AND. La búsqueda arrojó un total de 1896 artículos, de los cuales 60 cumplieron los criterios de inclusión y fueron finalmente incluidos en esta revisión. Se describe que el dolor es un síntoma poco específico para la patología glandular y está caracterizado principalmente por la localización del dolor, el cual se correlaciona con la ubicación anatómica de la glándula salival afectada. Dentro de las patologías dolorosas de glándulas salivales encontramos los trastornos inflamatorios, incluidas infecciones, obstrucciones, trastornos secundarios a hiposalivación; enfermedades sistémicas autoinmunes; neoplasias y trastornos de dolor neuropático. El diagnóstico y manejo del dolor de glándulas salivales requiere del conocimiento de las causas y mecanismos del dolor, siendo necesario reconocer los signos y síntomas de los trastornos de glándulas salivales para ser capaces de diagnosticarlos y tratarlos.

Salivary gland tumor: atypical presentation of breast cancer

Breast cancer is a heterogeneous disease with various histological and molecular subtypes. Among them, salivary gland tumors are rare and can be divided into three groups: pure myoepithelial differentiation, pure epithelial differentiation and myoepithelial with mixed epithelial differentiation. In the last group, adenoid cystic carcinoma stands out, a rare entity with low malignant potential. It represents less than 0.1­3% of breast cancer cases and has the most frequent clinical presentation as a palpable mass. The diagnosis is confirmed by histology and immunohistochemistry. Classically, they are low-aggressive triple-negative tumors, with overall survival and specific cancer survival at five and ten years greater than 95%. However, there are rare reports of aggressive variants with a risk of distant metastasis and death. Treatment is based on surgical resection with margins. Lymphatic dissemination is rare, and there is no consensus regarding the indication of an axillary approach. Adjuvant radiotherapy is indicated in cases of conservative surgery and should be discussed in other cases. The benefit of chemotherapy remains uncertain, as most tumors are indolent. We report a case that required individualized decisions based on its peculiarities of presentation, diagnosed in an asymptomatic elderly patient during screening, in which mammography showed heterogeneous gross calcifications clustered covering 1.6 cm. Stereotacticguided vacuum-assisted biopsy was performed, and the area was marked with a clip. The anatomopathological examination led to a diagnosis of salivary gland-type carcinoma, triple-negative. The patient underwent segmental resection of the right breast and sentinel lymph node biopsy. The final anatomopathological result was similar to that of the biopsy, with an immunohistochemicalprofile of the adenoid cystic type and two sentinel lymph nodes free of neoplasia. Considering age and histological subtype, adjuvant therapy was not indicated. Follow-up for three years showed no evidence of disease

Efecto de la hipoxia sobre los tejidos de la cavidad oral: revisión de la literatura / Effect of hypoxia on oral tissues: a review of the literature

La exposición a hipoxia es considerada un estímulo estresante, por lo que el organismo desarrolla meca-nismos de aclimatación para asegurar la homeosta-sis. Si bien el efecto de la hipoxia sobre los distintos sistemas de tejidos y órganos ha sido bien documen-tado, el rol de los bajos niveles de O2 en la cavidad oral no ha recibido el mismo análisis. En este trabajo se revisaron los datos bibliográficos disponibles sobre el efecto de la hipoxia sobre el tejido periodontal, las glándulas salivales, la pulpa dental y el hueso mandi-bular y alveolar. De lo analizado en la bibliografía, re-sulta evidente que los bajos niveles de O2 aumentan el número de mediadores inflamatorios que inducen la progresión de la enfermedad periodontal y, a su vez, la inflamación establecida durante dicha enfermedad agrava aún más las condiciones de hipoxia tisular. Las glándulas salivales también se encuentran afectadas durante la exposición a hipoxia, disminuyendo la can-tidad de saliva secretada, observándose alteraciones ultraestructurales en el parénquima glandular. Por otra parte, se ha establecido que la hipoxia puede te-ner efectos deseados para el cultivo de células madre de la pulpa dental, lo cual resulta útil en el campo de la odontología reparativa y también para el movimien-to dental durante los tratamientos ortodónticos. En conclusión, para determinar los efectos de la hipoxia en la cavidad oral se debe analizar no sólo el tipo de tejido involucrado sino también las condiciones de hi-poxia a las cuales éste es sometido, así también como la duración de la exposición y la modalidad de hipoxia (AU)

Exposure to hypoxia is considered a stressful stimulus, therefore the organism develops acclimation mechanisms to try to ensure homeostasis. Although the effect of hypoxia on different tissues and organs has been very well documented, the role of low levels of O2 in the oral cavity has not received the same analysis. In this review, we analyzed the available bibliographic data concerning the effects of hypoxia on periodontal tissue, salivary glands, and dental pulp. The published evidence demonstrates that low O2 levels increase the number of inflammatory mediators that induce the progression of periodontal disease, and, in turn, the inflammation established during the progression of periodontitis aggravates tissue hypoxia conditions. Salivary glands are also affected during hypoxic exposure, decreasing salivary secretion, and leading to ultrastructural alterations in the glandular parenchyma. On the other hand, hypoxia could also be beneficial in some scenarios. It has been established that dental pulp cells grow better in culture under hypoxic conditions than they do in normoxia. Furthermore, mild hypoxia seems to stimulate periodontal ligament cells proliferation and matrix degradation, key events during for orthodontic treatments. In conclusion, to determine the effects of hypoxia in the oral cavity, it is necessary to analyze not only the type of tissue involved but also the hypoxic conditions to which it is subjected, as well as its duration and modality (AU)

Obesity, salivary glands and oral pathology / Obesidad, glándulas salivales y patología oral

Abstract Obesity has reached pandemic proportions in recent years. Not only adults suffer from the disease, but increasingly children and young people. One of the main causes of overweight and obesity is excessive food intake, in particular heavily processed carbohydrates. Obesity alters multiple organs, including the salivary glands, bringing functional alterations with it. Among researchers, the relation between obesity and tooth decay, periodontal disease and xerostomia is being debated. More and more scientific reports are drawing attention to the changes in the microflora of the oral cavity during obesity. All changes are closely related to the morphological and functional alterations of the salivary glands. This article review presents the current points of view regarding the impact of obesity on the health of the salivary glands, and how changes their functions influence other structures in the oral cavity.

Resumen La obesidad ha alcanzado proporciones pandémicas en los últimos años. No solo los adultos padecen la enfermedad, sino también cada vez más niños y jóvenes. Una de las principales causas del sobrepeso y la obesidad es la ingesta excesiva de alimentos, en particular los carbohidratos altamente procesados. La obesidad altera múltiples órganos, incluidas las glándulas salivales, y trae consigo alteraciones funcionales. Entre los investigadores, se está debatiendo la relación entre la obesidad y la caries dental, la enfermedad periodontal y la xerostomía. Cada vez más informes científicos están llamando la atención sobre los cambios en la microflora de la cavidad oral durante la obesidad. Todos los cambios están estrechamente relacionados con las alteraciones morfológicas y funcionales de las glándulas salivales. Esta revisión del artículo presenta los puntos de vista actuales sobre el impacto de la obesidad en la salud de las glándulas salivales, y cómo los cambios en sus funciones influyen en otras estructuras de la cavidad oral.

Sialometaplasia Necrotizante: Revisión de la Literatura a Propósito de un Caso / Necroting Sialometaplasia: Review of the Literature on a Case

RESUMEN: La sialometaplasia necrotizante (SN) es una rara enfermedad benigna, inflamatoria, autolimitante, que afecta más frecuentemente a las glándulas salivales menores y que comúnmente se asocia a las ubicadas en la porción más posterior del paladar duro. Su etiología no esta clara, la mayoría de los autores sugieren que una lesión química, física o biológica de los vasos sanguíneos produciría cambios isquémicos, que provocarían infarto del tejido glandular con necrosis, inflamación e intento de reparación. Clínicamente puede presentarse como una úlcera de márgenes irregulares, ligeramente elevados y lecho necrótico, mientras que histopatológicamente se caracteriza por presentar metaplasia escamosa de conductos y acinos e hiperplasia pseudoepiteliomatosa del epitelio mucoso. La similitud de sus características clínicas e histopatológicas con algunas lesiones glandulares malignas de la cavidad oral, puede resultar en tratamientos innecesarios, considerando que la SN se trata de una patología autoresolutiva, por lo que es fundamental realizar un correcto diagnóstico clínico e histopatológico para evitar tratamientos quirúrgicos mutilantes o innecesarios. En el presente trabajo se presenta un caso de una mujer joven, con diagnóstico de SN, con sus características clínicas, histopatológicas y la evolución de la lesión.

ABSTRACT: The Necrotizing Sialometaplazia (NS) it's a rare self-limiting, inflammatory, benign disease, that most frequently affects the minor salivary glands and it is commonly associated to the glands located at the most posterior portion of the hard palate. Its etiology is not clear. Most authors suggest that a chemical, physical or biological lesion of the blood vessels would produce ischemic changes, which lead to infarction of muscle tissue with necrosis, inflammation and attempts to repair. Clinically it can present as a slightly elevated ulcer with irregular edges and necrotic bed, while histopathologically it is characterized for present squamous metaplasia of ducts and acini and pseudoepitheliomatous hyperplasia of mucosal epithelium. The similarity of its clinical and histopathological characteristics with some malignant glandular lesions of the oral cavity, can result in unnecessary treatments, considering that NS is a self-sustaining pathology, it is therefore essential to perform a correct clinical and histopathological diagnosis to avoid mutilating or unnecessary surgical treatments. In the present work we present the case of a young woman, with diagnosis of NS, with its clinical and histopathological characteristics and the evolution of the lesion.

A cross-sectional study of the clinical features and physician visit patterns at onset of immunoglobulin G4 related disease / 北京大学学报(医学版)

OBJECTIVE@#To comprehend clinical features and patient's physician visit patterns at onset of immunoglobulin G4 related disease (IgG4RD).@*METHODS@#In the study, 100 patients with IgG4RD who received treatments in the Department of Rheumatology and Immunology of Peking University People's Hospital from Apr. 1st, 2017 to Apr. 1st, 2018 were investigated, including gender, age, height, body weight, age of onset, physician visit history, primary history and how did the disease affected their life, etc. RESULTS: In this 100 IgG4RD cohort (57 males and 43 females), the male/female ratio was 1:0.75, the mean age of onset was (51.51±12.9) years, and the median duration was 49 months (ranging from 4 to 231 months). The onset age of males was significantly older than that of females (P<0.01). The manifestations showed that up to 69% patients had submaxillay glands lesion, 59% patients had lacrimal glands lesion, 28% patients had pancreas involvement and 28% patients had parotid glands involvement. The females had more lacrimal glands involvement (P<0.05). 62% patients were complicated with anaphylactic disease. The primary physician visit departments concentrated upon general surgery department (19/100), oral and maxillofacial surgery department (17/100), rheumatology and immunology department (16/100), ophthalmology department (15/100) and gastroenterology department (10/100). The departments where the confirmed diagnose was made concentrated upon rheumatology department (67/100),oral and maxillofacial surgery department (16/100) and gastroenterology department (7/100). The mean diagnosis duration after 2010 was (16.96±2.163) months, significantly shorter than that before 2010, which was (113.3±11.01) months. Before the definite diagnose was made, 43% patients underwent surgeries and 12% patients had more than one time surgeries. The patients whose first-visit department was a surgery department were more likely to undergo surgeries (P<0.01). 18% patients (18/100) stated that the disease had affected their work.@*CONCLUSION@#In this cohort of the IgG4RD patients, female is common and has earlier onset age than male. The major manifestations of IgG4RD are salivary glands, lacrimal glands and pancreas involvement. The common chief complains are salivary glands and lacrimal glands enlargement. Accompanied by anaphylactic disease is a marked manifestation of this disease. Delayed diagnoses are not rare, though this situation has been improved since 2010, and more attention still should be paid to the disease.

Sialometaplasia necrotizante: reporte de un caso y revisión de la literatura / Necrotizing sialometaplasia: case report and literature review

Introducción: La sialometaplasia necrotizante (SN) es una rara enfermedad benigna, inflamatoria de las glándulas salivales menores y mayores, comúnmente asociada a las ubicadas en la porción más posterior del paladar duro. La similitud de sus características clínicas e histológicas con algunas lesiones glandulares malignas, puede resultar en tratamientos innecesarios, considerando que la SN se resuelve espontáneamente entre 3-12 semanas. Caso clínico: Presentamos el caso de un adulto joven, con diagnóstico de SN, con sus características clínicas, histológicas y la evolución de la lesión.

Salivary glands Introduction: Necrotizing sialometaplasia (NS) is a rare benign inflammatory disease that affects the major and minor salivary glands. Commonly associated with the salivary glands of the rearmost portion of the hard palate. The similarity of their clinical and histological with some malignant glandular lesions may result in unnecessary treatment, whereas the NS resolves spontaneously within 3-12 weeks. Clinical case: We present the case of a young adult diagnosed with NS, with its clinical, histological and evolution of the injury.

Necrotizing sialometaplasia

Salivary glands

Histological and immunohistochemical findings of the action of botulinum toxin in salivary gland: systematic review / Achados histológicos e imunohistoquímicos da ação da toxina botulínica em glândula salivar: revisão sistemática

Abstract The treatment of sialorrhea is necessary for the constant risks posed by hypersalivation. A new therapeutic option comes up with the application of botulinum toxin in salivary glands. However, little is known about its mechanism of action in glandular tissue. Based on the above, this work had the objective to systematically review the literature about the action of botulinum toxin on submandibular and parotid salivary glands tissues. Electronic search was performed in databases of great relevance for this study (PubMed, SciELO, HighWire, Crossref, Scopus, Science Direct, MEDLINE, OLDMEDLINE, Serials Database, NLM Catalog, LILACS and IBECS). Inclusion and exclusion criteria for articles were established, and a total number of 14 articles were selected and used. There are few publications that clarify how the salivary gland acini behave with application of botulinum toxin. Although, the immunohistochemical findings were consistent among authors, showing weak immunoreactivity in glands treated with botulinum toxin. Histometric data are divergent, requiring more detailed studies to answer the questions about the efficacy and safety of botulinum toxin in salivary glands.

Resumo O tratamento da sialorreia se faz necessário pelos constantes riscos trazidos por este estado de hipersalivação. Uma nova opção terapêutica surge com a aplicação da toxina botulínica em glândulas salivares. Entretanto, pouco se sabe sobre o seu mecanismo de ação no tecido glandular. Com base no exposto, este trabalho teve o objetivo de revisar sistematicamente na literatura a ação da toxina botulínica sobre o tecido das glândulas salivares submandibular e parótida. Foi realizada uma busca eletrônica em bases de dados de grande relevância para este estudo (PubMed, SciELO, HighWire, Crossref, Scopus, Science Direct, MEDLINE, OLDMEDLINE, Serials Database, NLM Catalog, LILACS e IBECS). Foram estabelecidos critérios de inclusão e exclusão para os artigos, e um "n" de 14 trabalhos foram selecionados e utilizados. São poucas as publicações que esclarecem como os ácinos das glândulas salivares se comportam mediante aplicação da toxina botulínica. Apesar de os achados imunohistoquímicos entre os autores serem concordantes, com imunorreatividade mais fracas nas glândulas tratadas com a toxina botulínica, os dados histométricos são divergentes e há questionamentos metodológicos, necessitando de mais estudos pormenorizados para responder as questões sobre a eficácia e segurança da toxina botulínica nas glândulas salivares.

Expressão de VEGF-C, VEGF-D, mensuração da densidade linfática e da proliferação endotelial linfática em neoplasias de glândulas salivar / Expression of VEGF-C, VEGF-D density measurement of lymphatic and lymphatic endothelial proliferation in salivary gland neoplasms

As neoplasias de glândulas salivares exibem uma grande diversidade morfológica e comportamentos biológicos variados o que suscita o interesse na pesquisa destas lesões. A disseminação das células tumorais é um passo inicial para a progressão de neoplasias malignas e, dentro deste contexto, os vasos linfáticos neoformados são considerados essenciais para que ocorra essa disseminação. O papel do VEGF (fator de crescimento endotelial vascular) na formação dos vasos é fato conhecido mas, pouco se sabe a respeito de sua participação em tumores de glândula salivar. Desta forma, o objetivo deste estudo foi avaliar a expressão do VEGF-C e VEGF-D, a densidade linfática tumoral (D2-40) e a proliferação endotelial linfática (dupla marcação D2-40/Ki-67) em uma série de neoplasias de glândulas salivares. A amostra foi composta por 20 adenomas pleomórficos, 20 carcinomas adenóides císticos, 20 carcinomas mucoepidermóides e 10 casos de tecido glandular salivar com características de normalidade para efeito comparativo. Todos os casos estudados exibiram expressão positiva para VEGF-C em região peritumoral e intratumoral, não sendo encontrada diferenças de imunoexpressão entre os grupos. No entanto, o grupo dos carcinomas adenóides císticos demonstrou diferença significativa da imunoexpressão do VEGF-C segundo o padrão cribriforme e sólido (p = 0,004). A maioria dos casos constantes do presente estudo, apresentou fraca marcação para VEGF-D em região peritumoral e intratumoral...

Salivary gland neoplasms exhibit a great morphological diversity and varied biological behavior which raises the interest in the study of these lesions. The spread of tumor cells is an early step in the progression of malignancies and the neoformed lymphatic vessels are considered essential in tumor dissemination. Vascular endotelial growth fator (VEGF) is a family of proteins involved in angiogenesis e lymphangiogenesis. However, in salivar tumors we have limited information on the expression. The aim of this study was to assess the expression of VEGF-C and VEGF-D, lymphatic vessel density (single-staining D2-40) and lymphatic endothelial proliferation (double labeling D2-40/Ki-67) in a series of salivary glands neoplasms. We selected 20 cases of pleomorphic adenoma, 20 of mucoepidermoide carcinoma, 20 of adenoid cystic carcinoma and 10 tissue sample of normal salivary gland. All cases studied showed positive expression of VEGF-C in intratumoral and peritumoral region, no differences in immunoreactivity was found between the groups. However, the group of adenoid cystic carcinoma showed a significant difference in immunoreactivity of VEGF-C by the cribriform and solid pattern (p = 0.004). Most of the cases included in this study showed weak immunoreactivity for VEGF-D in intratumoral and peritumoral region. In the assessment of lymphatic endotelial density peritumoral, intratumoral and total, the groups showed an increasing gradient, with lower values for the group of pleomorphic adenomas followed by mucoepidermoid carcinoma and adenoid cystic carcinoma. Lymphatic endothelial cell density was higher in malignant than benign tumors. No correlation was observed between the immunoreactivity of VEGF-C and VEGF-D in relation to tumor lymphatic density and lymphatic endothelial proliferation.

Clinicopathological analysis of salivary gland tumors over a 15-year period

Abstract Salivary gland tumors (SGT) are rare neoplasms that generate interest due to their histopathological diversity and clinical behavior. The aims of the present study were to investigate clinicopathological aspects of SGTs diagnosed at a tertiary health center and compare the findings with epidemiological data from different geographic locations. Cases of tumor in the head and neck region at a single health center in the period between 1995 and 2010 were reviewed. Patient gender, age and ethnic group as well as anatomic location, histological type and clinical behavior of the tumor were recorded. Availability of complete information about these aspects was considered the inclusion criteria. Descriptive statistical analysis of the data was performed using the frequencies of categorical variables. Among the 2168 cases of tumors in the head and neck region, 243 (11.20%) cases were diagnosed in the salivary glands, 109 of which met the inclusion criteria: 85 (78%) benign tumors and 24 (22%) malignant tumors. Mean patient age was 46.47 years. The female gender accounted for 56 cases (51.4%) and the male gender accounted for 53 (48.3%). The major salivary glands were affected more (75.2%) than the minor glands. The most frequent benign and malignant SGTs were pleomorphic adenoma (81.2%) and adenoid cystic carcinoma (58.3%), respectively. In conclusion, pleomorphic adenoma and adenoid cystic carcinoma are the most frequent benign and malignant lesions, respectively. Comparing the present data with previous studies on SGTs, one may infer that some demographic characteristics and the predominance of malignant tumors vary in different geographic regions.

Expression of Autophagy and Reactive Oxygen Species-Related Proteins in Lacrimal Gland Adenoid Cystic Carcinoma

PURPOSE: To investigate the difference of expression of autophagy and reactive oxygen species (ROS) related proteins in adenoid cystic carcinoma (ACC) of lacrimal gland in comparison with ACC of salivary gland. MATERIALS AND METHODS: Formalin-fixed, paraffin-embedded tissue samples from patients pathologically diagnosed as lacrimal gland ACC (n=11) and salivary gland ACC (n=64) were used. Immunochemistry was used to measure expression of autophagy related proteins [beclin-1, light chain (LC) 3A, LC3B, p62, and BCL2/adenovirus E1B 19 kDa protein-interacting protein 3 (BNIP3)] and ROS related proteins [catalase, thioredoxinreductase, glutathione S-transferasepi (GSTpi), thioredoxin interacting protein, and manganese superoxide dismutase (MnSOD)]. The prognostic factors related to disease-free and overall survival (OS) in lacrimal gland ACC by log-rank tests, were determined. RESULTS: GSTpi in stromal cells was more highly expressed in lacrimal gland ACC (p=0.006), however, MnSOD in epithelial cells was expressed more in salivary gland ACC (p=0.046). LC3B positivity and BNIP3 positivity in epithelial component were associated with shorter disease-free survival (both p=0.002), and LC3A positivity in stromal component was the factor related to shorter OS (p=0.005). CONCLUSION: This is the first study to demonstrate the expression of autophagy and ROS related proteins in lacrimal gland ACC in comparison with the salivary gland ACC, which would provide a basis for further study of autophagy and ROS mechanism as novel therapeutic targets in lacrimal gland ACC.

Enfermedad de Castleman en glándula salival: informe de un caso pediátrico / Castleman disease in salivary gland: report of a pediatric case

La enfermedad de Castleman (EC) es una rara entidad linfoproliferativa benigna caracterizada por el crecimiento no neoplásico progresivo de los ganglios linfáticos en cualquier parte del cuerpo, aunque en la mayoría de los casos (60%) afecta el mediastino y, con una muy baja frecuencia, compromete la región de la cabeza y el cuello, incluidas las glándulas salivales. Representa un desafío diagnóstico para el médico porque se presenta con síntomas y signos inespecíficos. Existen dos subtipos: uno localizado en forma de adenopatía sin síntomas generales y otro multicéntrico con compromiso de varios grupos ganglionares y con manifestaciones clínicas sistémicas y alteraciones del laboratorio. El diagnóstico requiere un examen físico completo y exámenes complementarios (laboratorio, ecografía, tomografía computarizada o resonancia magnética nuclear o ambas, punción aspiración con aguja fina) y se confirma a través del análisis histopatológico. El tratamiento es quirúrgico, pero la forma multicéntrica requiere además un tratamiento adyuvante. A pesar de su localización inusual en las glándulas salivales, la EC debería ser considerada entre los diagnósticos diferenciales, sobre todo ante la sospecha de procesos linfoproliferativos. Se describe en este trabajo el caso de una paciente pediátrica con diagnóstico de EC localizada en la glándula submaxilar, y se realizó una revisión de la literatura. (AU)

Castleman disease (CD) is a rare lymphoproliferative entity characterized for a non ­ neoplasic progressive growth of the lymph nodes in any part of the body; nevertheless it usually affects the mediastinum (60 %), and with less frequency, it compromises the head and neck region, including the salivary glands. It represents a diagnostic challenge for the doctor, because it has nonspecific symptoms and signs. There are two subtypes: the localized form, that generally is presented through an adenopaty without systemic symptoms, and a multicentric form that compromises several nodal groups and has systemic symptoms and laboratory abnormalities. Diagnosis requires a complete physical examination and complementary exams (blood tests, ultrasonography, computed tomography and/or magnetic resonance, fine needle puncture ­ aspiration), and the final diagnosis is through histopathological analysis. The treatment is surgery, but multicentric form requires adyuvant treatment. Although its unusual presentation in salivary glands, CD should be considered between differential diagnosis, especially when we are thinking of lymphoproliferative entities. In this article, we present a case of a pediatric patient with diagnosis of CD of submaxilar gland and we review the literatura about this disease with special attention in the salivary glands location. (AU)

Adenoma pleomórfico em lábio inferior: relato de caso / Pleomorphic adenoma in lower lip: case report

O adenoma pleomórfico é o tumor benigno mais comum de glândulas salivares, acometendo, com mais frequência, as glândulas salivares maiores, especialmente a glândula parótida. Geralmente se apresenta como nódulo firme, indolor e de crescimento lento. Suas localizações mais comuns, em glândulas salivares menores, são o palato mole, duro e lábio superior, podendo ser encontrado em outras regiões com menos frequência. Essa lesão tem ligeira preferência pelo gênero feminino e seu tratamento consiste na excisão cirúrgica. O prognóstico é bom para as lesões benignas enucleadas. O objetivo deste trabalho é relatar o caso de um paciente portador de adenoma pleomórfico em lábio inferior. O paciente foi tratado sem intercorrências por meio da excisão cirúrgica da lesão e encontra-se em acompanhamento pós-operatório de um ano sem sinais de recidiva e sem queixas funcionais ou estéticas. No entanto, um acompanhamento mais prolongado se faz necessário para indicar cura do paciente... (AU)

Pleomorphic adenoma is a benign tumor most common of salivary glands, it usually occurs in major salivary glands, especially the parotid gland. Normally, it is seen as a firm nodule, painless with slow growth. Its locations most common, in minor salivary glands, are the soft and hard palate and upper lip, it can be found in other regions less frequently. This lesion has slight preference for females and its treatment consists on surgical excision. The prognosis is good to the removed benign lesions. The aim of this work is to report the case of a patient with the diagnosis of pleomorphic adenoma in lower lip. The case was treated without complications, and a year follow-up patient showed no recurrence, but longer follow is necessary to indicate patient's cure... (AU)

Rânula Mergulhante Recidivante: relato de caso / Recurrent Plunging Ranula: case report

Rânula é uma patologia não hereditária, indolor, caracterizada por formação de uma bolsa preenchida geralmente por líquido mucinoide, frequentemente resultante de trauma ou obstrução da glândula associada. Geralmente, essas lesões são facilmente identificáveis a partir de um exame clínico minucioso, apesar de existirem outras entidades clínicas com aspectos semelhantes. A variante mergulhante disseca o músculo milohióideo, podendo causar tumefação na região cervical correspondente. Existem várias formas de tratamento, sendo as mais usadas a marsupialização concomitante ou não à excisão cirúrgica da lesão e da glândula salivar envolvida. A proposta deste relato de caso é mostrar ao colega cirurgião-dentista uma visão de plano de tratamento para esse tipo de alteração e as prováveis condutas de acordo com a apresentação e mudanças que, porventura, podem ocorrer, além da importância da proservação e acompanhamentos posteriores a partir de uma experiência do nosso serviço... (AU)

Ranula is a non-hereditary disease, painless, characterized by forming a generally liquid-filled mucina, often resulting from trauma or obstruction associated gland. Generally, these lesions are easily identifiable from a thorough clinical examination, although there are others clinical entities with similar aspects. The variant plunging mylohioideo dissects the muscle, causing swelling in the neck accordingly. There are several forms of treatment, of which the most used are the marsupialization or without concomitant surgical excision of the lesion and the salivary gland involved. The purpose of this case report is to show the dentist colleague of vision treatment plan for this type of change and the likely behavior according to the presentation and changes that may occur, and the importance of proactive observation and subsequent follow from experience of our service... (AU)

Síndrome de Sjögren: Caso clínico / Sjögren's syndrome: case report

Introducción: El síndrome de Sjögren (SS) es una enfermedad crónica, autoinmune, que afecta principalmente a las glándulas exocrinas lagrimales y salivales. En niños es una enfermedad rara. Objetivo: Presentar el caso de un adolescente con síntomas inespecíficos, en que la sospecha clínica hizo llegar al diagnóstico de SS. Caso Clínico: Paciente de 12 años, de sexo masculino, con historia de artralgias de 3 años de evolución y xeroftalmia dudosa. El examen físico mostró leve congestión conjuntival, boca seca e hiperlaxitud de rodillas. Pruebas de laboratorio: hemograma y VHS normales, anticuerpos antinucleares (+) > 60, Ro (+) > 60 U, factor reumatoideo (+) 160 UI/ml. Se sospechó SS y se completó el estudio: test de Shirmer, que determinó ojo seco leve; gammagrafía de las glándulas salivales, que mostró disfunción de las glándulas submaxilares y parotídeas; biopsia de glándulas salivales, que mostró focos de infiltrado linfoide acinar y periductal. Se confirmó SS y se inició tratamiento con prednisona 7,5 mg/día e hidroxicloroquina 200 mg/día y tratamientos locales, con buena respuesta. Conclusiones: Los criterios diagnósticos del SS en adultos identifican solo al 39% de los pacientes pediátricos por la baja frecuencia de síntomas de sicca. Aún no existen criterios diagnósticos validados para niños. Un buen diagnóstico permitirá aliviar los síntomas, evitar complicaciones y detectar enfermedades asociadas.

Introduction: Sjögren’s syndrome (SS) is a chronic autoimmune disease that primarily affects the lacrimal and salivary exocrine glands. In children, it is a rare condition. Objective: To present the case of an adolescent with non-specific symptoms, but with a clinical suspicion of SS. Case report: A male 12-year old patient, with history of arthralgias for 3 years and suspicion of xerophthalmia. Physical examination showed mild conjunctival congestion, dry mouth and hypermobility of the knees. Laboratory work: blood count and ESR were normal, antinuclear antibodies (+) > 60, Ro (+) > 60 U, and rheumatoid factor concentration (+) 160 IU/ml. SS was suspected, and a study was carried out: Schirmer test determined mild dry eye, salivary gland scintigraphy showed parotid and submandibular gland dysfunction, and salivary gland biopsy reported focal lymphocytic acinar and periductal infiltration. SS was confirmed and treated with prednisone 7.5 mg/day and hydroxychloroquine 200 mg/day, and local treatment, with good response. Conclusions: The diagnostic criteria for SS in adults identified only 39% of pediatric patients, due to the low frequency of sicca symptoms. Still there are no validated diagnostic criteria for children. A good diagnosis will alleviate symptoms, prevent complications and detect associated diseases.

Salivary gland tumours: a tertiary care hospital experience

To study demographic, clinical and histopathological features of salivary gland tumours in a tertiary care hospital. Prospective cross sectional study. This study was carried out in the Department of ENT, Head and Neck surgery, Postgraduate Medical Institute, Lady Reading Hospital Peshawar from June 2010 to May 2014. This prospective cross sectional study of 4 years was carried out in the Department of ENT, Head and Neck surgery, Postgraduate Medical Institute, Lady Reading Hospital Peshawar. All the patients qualifying inclusion criteria were evaluated in terms of detailed history, thorough examination and relevant investigation. After performing required surgery specimen was examined for histopathology. In this study 123 patients were included with mean +/- SD age of 40 +/- 5.1 years [age range 7–76 years]. Males were 81 and females were 42 with male: female ratio of 1.9:1. Most of the patients presented in 4th decade [28.45%, 35]. Lump was the commonest clinical feature lasting for 1-5 years [66.66%, 82]. Among the tumours 77.23% were benign while 22.76% were malignant. Benign tumours were commonly noticed in parotid gland [53.65%]. Pleomorphic adenoma was the commonest benign tumour [65.04%, n-80], affecting parotid gland in 52.03%. Mucoepidermoid carcinoma is the commonest malignant tumour [12.19%] predominantly found in minor salivary gland of palate [6.50%]. Salivary gland tumours predominantly affecting middle aged male population. Benign tumours are the commonly occurring salivary gland tumours. Pleomorphic adenoma is commonly occurring benign tumour affecting predominantly parotid gland while mucoepidermoid carcinoma is the commonest malignant tumour of salivary glands

[Reliability of fine needle aspiration cytology for salivary gland lesions]

Fine needle aspiration [FNA] cytology is a safe, reliable, minimally invasive and cost-effective technique for the diagnosis of salivary gland lesions. This study aimed to assess the accuracy, reliability and diagnostic value of FNA cytology in Iran. A total of 200 records of patients with a history of biopsy or surgical excision of salivary gland lesions along with their histological and cytological examination results were retrieved and evaluated in the Pathology Department of Amir Alam Hospital during 2007-2013. The results of cytological diagnosis were divided into 4 groups of unfavorable, benign, suspicious and malignant. The cytological results were compared with histological data. The accuracy, sensitivity, specificity, positive predictive value and negative predictive value of FNA cytology were calculated using SPSS version 16.00. Of the specimens chosen for the study, 173 were from the period, 22 from the submandibular and 5 from the minor salivary glands. FNA cytological diagnosis was benign in 161 cases, suspicious for malignancy in 4 cases, and malignancy in 35 cases. Of 161 cases diagnosed as benign by FNA cytology, 25 were malignant and the frequency of false positive results was 15.5%. The accuracy, sensitivity, specificity, positive and negative predictive values of the FNA test were 82, 53, 93, 72 and 84%, respectively. A good agreement exists between the FNA results and final histopathological diagnosis of salivary gland tumors. Also, this study showed that FNA cytology, 25 were malignant and the frequency of false positive results was 15.5%. The accuracy, sensitivity, specificity, positive and negative predictive values of the FNA test were 82, 53, 93, 72 and 84%, respectively. A good agreement exists between the FNA results and final histopathological diagnosis of salivary gland tumors. Also, this study showed that FNA cytology has moderate accuracy and relative diagnostic value for diagnosis of salivary gland lesions

Mucoepidermoid Carcinoma of Palate: A Case Report.

The most common types of salivary gland tumors are the pleomorphic adenoma and the mucoepidermoid carcinoma (MEC). MEC mainly occurs in the parotid gland; intraorally MEC appears as asymptomatic swellings in minor salivary glands, most commonly occurs on palate. It shows a variety of biological behaviors and variable natural history. Clinical, radiological and histopathological findings of palatal MEC in a young woman presented here. Surgical resection was done. Follow-up of one and half year did not show any recurrence.