Contribution of public oral pathology services to the diagnosis of oral and oropharyngeal cancer in Brazil.

This study aimed to evaluate the contribution of oral and maxillofacial pathology laboratories (OMPLs) in Brazilian public universities to the diagnosis of lip, oral cavity, and oropharyngeal squamous cell carcinoma (SCC). A cross-sectional study was performed using biopsy records from a consortium of sixteen public OMPLs from all regions of Brazil (North, Northeast, Central-West, Southeast, and South). Clinical and demographic data of patients diagnosed with lip, oral cavity, and oropharyngeal SCC between 2010 and 2019 were collected from the patients' histopathological records. Of the 120,010 oral and maxillofacial biopsies (2010-2019), 6.9% (8,321 cases) were diagnosed as lip (0.8%, 951 cases), oral cavity (4.9%, 5,971 cases), and oropharyngeal (1.2%, 1,399 cases) SCCs. Most cases were from Brazil's Southeast (64.5%), where six of the OMPLs analyzed are located. The predominant profile of patients with lip and oral cavity SCC was Caucasian men, with a mean age over 60 years, low schooling level, and a previous history of heavy tobacco consumption. In the oropharyngeal group, the majority were non-Caucasian men, with a mean age under 60 years, had a low education level, and were former/current tobacco and alcohol users. According to data from the Brazilian National Cancer Institute, approximately 9.9% of the total lip, oral cavity, and oropharyngeal SCCs reported over the last decade in Brazil may have been diagnosed at the OMPLs included in the current study. Therefore, this data confirms the contribution of public OMPLs with respect to the important diagnostic support they provide to the oral healthcare services extended by the Brazilian Public Health System.

Sociodemographic and clinical characterization of cases of 1,103 non-syndromic and 66 syndromic odontogenic keratocyst: a Brazilian multicenter study.

OBJECTIVES: This multicenter study aimed to evaluate cases of non-syndrome and syndromic odontogenic keratocyst, as well as cases of recurrence within these two groups. METHODS: This descriptive, analytical, retrospective cross-sectional study evaluated the sex, age and presence of multiple lesions in 1,169 individuals seen at 10 Brazilian oral and maxillofacial pathology centers. Of these, 1,341 odontogenic keratocysts were analyzed regarding clinical diagnosis, size, site, imaging appearance, signs and symptoms, type of biopsy, treatment, and recurrence. RESULTS: There was a similar distribution by sex. The median age of non-syndromic and syndromic patients was 32 and 17.5 years, respectively. The posterior mandible was the site most affected by small and large lesions in both groups and in recurrent cases. Unilocular lesions were more frequent, also in recurrent cases. Mainly small lesions showed this imaging appearance. Signs and symptoms were absent in most cases. Conservative treatment was the most frequent modality in all age groups, regardless of the patient's condition and recurrence. Recurrences were uncommon. CONCLUSION: This study showed a higher frequency of non-syndromic keratocysts in the population. Clinicopathological features related to the involvement of multiple sites, age, and recurrence may differ between syndromic and non-syndromic cases. Furthermore, we found an association between lesion size and some clinical features and between the time interval to recurrence and the syndromic spectrum. CLINICAL RELEVANCE: To contribute to a better understanding of the distribution and association between clinical, imaging, and sociodemographic characteristics in each spectrum of the lesion.

Contribution of public oral pathology services to the diagnosis of oral and oropharyngeal cancer in Brazil

Abstract This study aimed to evaluate the contribution of oral and maxillofacial pathology laboratories (OMPLs) in Brazilian public universities to the diagnosis of lip, oral cavity, and oropharyngeal squamous cell carcinoma (SCC). A cross-sectional study was performed using biopsy records from a consortium of sixteen public OMPLs from all regions of Brazil (North, Northeast, Central-West, Southeast, and South). Clinical and demographic data of patients diagnosed with lip, oral cavity, and oropharyngeal SCC between 2010 and 2019 were collected from the patients' histopathological records. Of the 120,010 oral and maxillofacial biopsies (2010-2019), 6.9% (8,321 cases) were diagnosed as lip (0.8%, 951 cases), oral cavity (4.9%, 5,971 cases), and oropharyngeal (1.2%, 1,399 cases) SCCs. Most cases were from Brazil's Southeast (64.5%), where six of the OMPLs analyzed are located. The predominant profile of patients with lip and oral cavity SCC was Caucasian men, with a mean age over 60 years, low schooling level, and a previous history of heavy tobacco consumption. In the oropharyngeal group, the majority were non-Caucasian men, with a mean age under 60 years, had a low education level, and were former/current tobacco and alcohol users. According to data from the Brazilian National Cancer Institute, approximately 9.9% of the total lip, oral cavity, and oropharyngeal SCCs reported over the last decade in Brazil may have been diagnosed at the OMPLs included in the current study. Therefore, this data confirms the contribution of public OMPLs with respect to the important diagnostic support they provide to the oral healthcare services extended by the Brazilian Public Health System.

Impact of the COVID-19 pandemic on public University laboratories of oral and maxillofacial pathology: A Brazilian multicenter study.

OBJECTIVE: To evaluate the impact of the COVID-19 pandemic on the number of diagnoses of oral and maxillofacial lesions in public laboratories after one year of COVID-19 outbreak in Brazil. MATERIAL AND METHODS: This is a cross-sectional study. Biopsies submitted to histopathologic examination from March 2019 to February 2020 (pre-pandemic period) and from April 2020 to March 2021 (pandemic period) in nine Brazilian public oral pathology laboratories were retrieved and the number of diagnoses, types of lesion, and percentage changes during both periods were analyzed. RESULTS: There were 7389 diagnoses in the pre-pandemic period and 2728 in the pandemic era, indicating a reduction of 63.08%. The reduction was 64.23% for benign lesions and 49.48% for malignant lesions, with a 50.64% reduction in squamous cell carcinoma. The largest decreases were observed in April 2020 and January 2021. CONCLUSION: An important reduction in the diagnoses of benign and malignant lesions was noted in the Brazilian public oral pathology laboratories during the first year of the COVID-19 pandemic.

Recommendations for evaluation and diagnosis of extra-glandular manifestations of primary sjogren syndrome: results of an epidemiologic systematic review/ meta-analysis and a consensus guideline from the Brazilian Society of Rheumatology (articular, pulmonary and renal)

Abstract Sjogren's Syndrome (SS) is an autoimmune disease characterized by lymphocytic infiltration of the exocrine glands and other organs, associated with sicca syndrome but also with systemic involvement with varying degrees of severity. Despite their importance, these systemic manifestations are not routinely evaluated and there is no homogenous approach to their diagnosis or evaluation. To close this gap, a panel of experts from the Brazilian Society of Rheumatology conducted a systematic review and meta-analysis on the identification of epidemiologic and clinical features of these manifestations and made recommendations based on the findings. Agreement between the experts was achieved using the Delphi method. The first part of this guideline summarizes the most important topics, and 11 recommendations are provided for the articular, pulmonary, and renal care of SS patients.

Recommendations for evaluation and diagnosis of extra-glandular manifestations of primary Sjögren syndrome: results of an epidemiologic systematic review/ meta-analysis and a consensus guideline from the Brazilian society of rheumatology (hepatic, gastrointestinal and pancreatic)

Abstract Sjogren's syndrome (SS) is an autoimmune disease characterized by lymphocytic infiltration of the exocrine glands and other organs, associated with sicca syndrome but also with systemic involvement with varying degrees of severity. Despite their importance, some systemic manifestations, mainly liver, gastrointestinal, and pancreatic are not routinely evaluated. To address these manifestations, the Sjögren's Syndrome Committee of the Brazilian Society of Rheumatology conducted a broad systematic review of the literature on studies investigating prevalence and diagnosis of these symptoms in Sjogren´s patients and made recommendations based on the findings. Agreement between the experts was achieved using the Delphi method. This is the second part of this guideline, providing 6 recommendations for liver, gastrointestinal, and pancreatic care of SS patients.

Disfunções orofaciais em pacientes infantojuvenis com leucemia aguda / Orofacial dysfunctions in infants and young children with acute leukemia

RESUMO Objetivo Identificar a ocorrência de disfunções orofaciais em pacientes infantojuvenis com leucemia aguda, submetidos à quimioterapia de remissão. Métodos Em um período de 16 meses, 40 pacientes com leucemias agudas, entre 3 e 18 anos de idade, foram admitidos em um hemocentro no estado do Amazonas. Destes, 23 foram incluídos neste estudo transversal e submetidos à avaliação das funções orofaciais, por meio do Nordic Orofacial Test-Screening (NOT-S), entre o trigésimo (D30) e o trigésimo terceiro dia (D33) da fase de indução da remissão. A presença de manifestações orais também foi avaliada por meio de exame clínico. Resultados Disfunção orofacial foi observada em, aproximadamente, metade dos casos avaliados (n=11). Destes pacientes, todos tiveram o domínio Secura de Boca (VI) alterado e 81,8% (n=9) apresentaram alteração no domínio Mastigação e Deglutição (IV). Mucosites em lábios, língua, soalho e orofaringe foram as lesões orais mais encontradas após a fase de indução. Houve associação entre a ocorrência de lesões orais nos pacientes avaliados e a presença de disfunção orofacial, segundo o NOT-S (IC 95%, p-valor = 0,027). Conclusão Sugere-se que a disfunção orofacial seja frequente na fase de indução da remissão em pacientes infantojuvenis com leucemias agudas. Estudos sobre as disfunções orofaciais nessa população, bem como sua relação com as lesões orais são necessários para melhor esclarecimento e compreensão dos impactos funcionais.

ABSTRACT Purpose To Identify the occurrence of orofacial dysfunctions in young children and adolescents with acute leukemia who are undergoing remission chemotherapy. Methods Over a period of 16 months, 40 three to eighteen year -old patients with acute leukemia were admitted to the Amazonas State Hemocenter. Of these, 23 were included in the cross-sectional study and submitted to the evaluation of orofacial functions using the Nordic Orofacial Test-Screening, between D30 and D33 of the remission induction phase. The presence of oral manifestations was also evaluated via clinical examination. Results Orofacial dysfunction was observed in approximately half of the evaluated cases (n=11). Of these patients, all had alterations in the Dryness of the Mouth (VI) domain and 81.8% (n=9) showed alterations in the Chewing and Swallowing (IV) domain. Mucosites on lips, tongue, floor of the mouth and the oropharynx were the most commonly found oral lesions after the remission induction phase. According to the NOT-S, there was an association between the occurrence of oral lesions in the evaluated patients and the presence of orofacial dysfunction (95% CI, p-value = 0.027). Conclusion It is suggested that orofacial dysfunction is frequent in the remission induction phase in children and adolescents with acute leukemia. Studies regarding these orofacial dysfunctions in this population, as well as their relationship with oral lesions, are needed in order to fully understand their functional impact.

Differential diagnoses of solitary and multiple pigmented lesions of the oral mucosa: Evaluation of 905 specimens submitted to histopathological examination.

BACKGROUND: The aim was to analyze the frequency, clinical and demographic features of solitary and multiple/diffuse oral pigmented lesions submitted to histopathological examination, and to summarize the features that guide the clinical differential diagnosis. METHODS: Clinical and demographic data were retrieved from biopsy records and descriptive statistics were performed. RESULTS: Nine hundred and five (0.51%) oral pigmented lesions were retrieved among 177 356 specimens, being 95.9% solitary and 4.1% multiple/diffuse lesions. Regardless the overlapping clinical presentation, age, site, association with amalgam restoration, and a nodular appearance may help in the clinical differential diagnosis of solitary oral pigmentations. Patient's habits, site, and systemic signs and symptoms are helpful in the clinical differential diagnosis of multiple/diffuse lesions. CONCLUSIONS: Oral pigmented lesions are a rare diagnosis in oral pathology and solitary lesions are more commonly submitted to biopsy. Some key features help in the differential diagnosis, though biopsy can be warranted in doubtful cases.

A multicenter study of oral sarcomas in Brazil.

OBJECTIVES: The aim of this study was to investigate the prevalence of oral sarcomas from geographic regions of Brazil. MATERIALS AND METHODS: A cross-sectional study was conducted on biopsies obtained from January 2007 to December 2016 at twelve Brazilian oral and maxillofacial pathology centres. Gender, age, evolution time, clinical aspects, tumour location, tumour size at diagnosis, radiographic aspects and histopathological diagnosis were evaluated. Data were analysed using descriptive statistical methods. RESULTS: From 176,537, a total of 200 (0.11%) oral sarcomas were reported, and the most prevalent were osteosarcomas (74 cases; 37%) and Kaposi's sarcomas (52 cases; 26%). Males were more affected than females at a mean age of 32.2 years old (range of 3-87 years). The most common symptoms were swelling¸ localised pain and bleeding at a mean evolution time of 5.14 months (range <1-156 months). The lesions were mostly observed in the mandible (90 cases; 45%), with a mean tumour size of 3.4 cm (range of 0.3-15 cm). Radiographically, the lesions presented a radiolucent aspect showing cortical bone destruction and ill-defined limits. CONCLUSIONS: Oral sarcomas are rare lesions with more than 50 described subtypes. Osteosarcomas and Kaposi's sarcomas were the main sarcomas of the oral cavity in Brazil.

Clinicopathological and immunohistochemical features of the oral lymphoepithelial cyst: A multicenter study.

BACKGROUND: Analyze the clinical, demographic, histopathological, and immunohistochemical features of oral lymphoepithelial cyst (OLEC). METHODS: Samples were retrospectively retrieved from five oral pathology services. Clinical and demographic data were collected from patient charts. Histopathological and immunohistochemical (CD3 and CD20) features were evaluated. Data analysis involved descriptive statistics and bivariate analyses (P ≤ .05). RESULTS: Seventy-seven cases were found among a total of 146 150 specimens (0.05%). OLEC was predominantly diagnosed in females (70.1%). Mean patient age was 46.51 years. The lesions arose mainly on the lateral border of the tongue (40.3%), measured up to 1 cm (61.0%), and were asymptomatic (64.9%). Twenty-four lesions (31.2%) were white. Forty-one cases (53.2%) presented lymphocytic inflammatory infiltrate with no specific arrangement. The cystic lining was composed of a non-keratinized stratified epithelium (59.7%) presenting hyperplasia (39.0%). Connection with the surface, epithelium was found in 23 cases (29.9%) and 31 (40.3%) cases had two or more cystic cavities. The lumen content was predominantly desquamated cells (48.1%). Subgemmal neurogenous plaque was found in 11/42 (26.2%) cases involving the tongue. CD20+ cells predominated in 36/63 cases (57.2%), and lymphocytic inflammatory infiltrate was not always continuous around the cystic cavity (52.4%). CONCLUSION: Lymphoepithelial cyst is an uncommon lesion of the oral cavity. The present study offers the largest sample of OLEC for which clinical, demographic, histopathological, and immunohistochemical features were evaluated. The clinical and demographic findings were similar to those described in previous reports, but the microscopic analyses revealed interesting aspects of the cystic epithelium and the lymphocytic inflammatory infiltrate in OLEC.

Revisão dos aspectos morfológicos e imunoistoquímicos do linfoma difuso de grandes células B (LDGCB) com ênfase em boca / Review of the morphological and immunohistochemical aspects of diffuse large B cell lymphoma (DLBCL) with emphasis on the mouth

Os linfomas compreendem um grupo diverso de neoplasias malignas, provenientes de células do sistema imunológico em diferentes estágios de diferenciação. Objetivo: o propósito deste artigo é facilitar o diagnóstico do linfoma difuso de grandes células B (LDGCB) por meio de seus aspectos clínicos, morfológicos e imunoistoquímicos, além de suas peculiaridades como manifestação primária em boca. Revisão de literatura: foi realizada uma revisão narrativa da literatura por intermédio de artigos selecionados nas bases de dados PubMed, Medline, SciELO e Lilacs, pela busca por palavras-chave. Aspectos relacionados a classificação e manifestações clínicas também foram considerados, a fim de facilitar o entendimento da lesão e de suas particularidades em boca. Verificou-se que o LDGCB representa a variante mais comum em boca. Os sinais e sintomas clínicos relacionados a essa condição podem ser: aumento de volume, dor, ulceração, alteração de cor da mucosa ou até mesmo parestesia. Morfologicamente, os LDGCBs apresentam células grandes, com padrão de crescimento difuso, citoplasma escasso, nucléolos evidentes e mitoses. Na imunoistoquímica, os LDGCBs são geralmente positivos para CD20 e outros marcadores da linhagem B (CD19, CD79a, PAX5 e CD138), dependendo do estágio de maturação em que se encontram as células B. Considerações finais: o diagnóstico do LDGCB em boca representa um desafio contínuo para os patologistas, em função da heterogeneidade de suas características morfológicas e imunofenotípicas.(AU)

Lymphomas comprise a diverse group of malignant neoplasias from cells of the immune system at different stages of differentiation. Objective: this article aimed to facilitate the diagnosis of diffuse large B-cell lymphoma (DLBCL) through its clinical, morphological, and immunohistochemical aspects, as well as its particularities as a primary manifestation in the mouth. Literature Review: hence, a narrative review of the literature was performed using articles selected in the PubMed, Medline, SciELO, and Lilacs databases through keyword search. Aspects related to classification and clinical manifestations were also considered to facilitate the understanding of the lesion and its particularities in the mouth. It was verified that the diffuse large B-cell lymphoma (DLBCL) represents the most common variant in the mouth. The clinical signs and symptoms related to this condition may be increased volume, pain, ulceration, changed mucosal color, or even paresthesia. Morphologically, DLBCL presents large cells with diffuse growth pattern, scarce cytoplasm, evident nucleoli, and mitoses. In immunohistochemistry, DLBCL is usually positive for CD20 and other markers of lineage B (CD19, CD79a, PAX5, and CD138) depending on the maturation stage in which B cells are found. Final considerations: the diagnosis of oral DLBCL represents a continuous challenge for pathologists due to the heterogeneity of its morphological and immunophenotypic characteristics.(AU)

Oral manifestations and histopathology of minor salivary gland from patients with Sjögren's Syndrome and its diagnosis in a public health system

Objective: to analyze the oral manifestations, sialometry and the histopathology of the minor salivary glands of patients with Sjögren Syndrome (SS) treated in a public health system and diagnosed according to European American Consensus Group (EACG) criteria. Material and Methods: the 32 patients were submitted to Shirmer test, oral cavity exam, unstimulated and stimulated salivary flow measurement and, in some cases, to the serological testing. For certain patients a minor salivary gland biopsy was carried out. Results: 10 patients were diagnosed with Sjögren Syndrome (SS), among whom: 40% were diagnosed with primary (pSS) and 60% with secondary Sjögren Syndrome (sSS). All patients diagnosed with this condition complained of xerostomia and xeropthalmia. Besides xerostomia, the most frequent oral manifestations were difficulty in swallowing, dry lips, hyperemic gums and atrophic change in tongue papillae. The average scores of the Schirmer and salivary flow tests were lower in patients with sSS. Conclusion: the oral signs and symptoms are extremely important in the multisystem involvement of the SS, which emphasizes the dental surgeon responsibility in managing these patients. The establishment of multidisciplinary diagnostic centers is of utmost importance, as well as the ability to offer more objective exams in the public health system aiming at increasing the accuracy of Sjögren Syndrome diagnosis.

Recomendações para o tratamento da síndrome de Sjögren / Recommendations for the treatment of Sjögren's syndrome

RESUMOAs recomendações propostas pela Comissão de Síndrome de Sjögren da Sociedade Brasileira de Reumatologia para tratamento da síndrome de Sjögren foram baseadas em uma revisão sistemática da literatura nas bases de dados Medline (PubMed) e Cochrane até outubro de 2014 e opinião de especialistas na ausência de artigos sobre o assunto. Foram incluídos 131 artigos classificados de acordo com Oxford & Grade. Essas recomendações foram elaboradas com o objetivo de orientar o manejo adequado e facilitar o acesso aos tratamentos para aqueles pacientes com adequada indicação de recebê-los, considerando o contexto socioeconômico brasileiro e os medicamentos disponíveis no país.

ABSTRACTThe recommendations proposed by the Sjögren's Syndrome Committee of the Brazilian Society of Rheumatology for the treatment of Sjögren's syndrome were based on a systematic review of literature in Medline (PubMed) and the Cochrane databases until October 2014 and on expert opinion in the absence of studies on the subject. 131 articles classified according to Oxford & Grade were included. These recommendations were developed in order to guide the management and facilitate the access to treatment for those patients with an appropriate indication, considering the Brazilian socioeconomic context and pharmacological agents available in this country.