Odontogenic Myxoma : Follow-Up of 13 cases after conservative surgical treatment and review of the literature

We aim to report a serie of odontogenic myxoma over a 40-year period. We conducted a retrospective and sectional review of OM cases. The clinical, radiographic and treatment data were collected from clinical records included cases whose medical records

Actinic cheilitis:proposal of a clinical index

Actinic cheilitis is a potentially malignant lesion most commonly found in the lower lip of individuals with chronic exposure to ultraviolet radiation. The aim of this study was to develop and to test a clinical index that can be used to assess the severity of actinic cheilitis. The clinical index of actinic cheilitis was applied to 36 patients. An incisional biopsy was obtained to grade oral epithelial dysplasias following the World Health Organization (WHO) and binary systems, and to evaluate their association with clinical characteristics by Fisher?s exact test (P<0.05). The accuracy of the index was evaluated based on sensitivity, specificity, positive and negative predictive values, and receiver operating curve. The blurring between the border of the lip and the skin was significantly associated with cases without dysplasia/mild epithelial dysplasia (P=0.041) and with low risk of malignancy (P=0.005). Ulcers and crusts were significantly associated with moderate/severe epithelial dysplasia (P=0.002 and P=0.012, respectively) and high risk of malignancy (P=0.005 and P=0.045, respectively). Erosion showed a significant association only with high-risk cases of malignancy (P=0.024). The cut-off values of the diagnostic test showing the best performance were 10 for the WHO grading system and 11 for the binary system. The index cut-offs with the highest accuracy were considered indicators for a biopsy. Erosion, ulceration and crusts were associated with more severe oral epithelial dysplasias

Epidemiologic study of odontogenic and non-odontogenic cysts in children and adolescents of a Brazilian population

The objective of this study was to describe the frequency of cystic lesions in a Brazilian population of patients histopathologically diagnosed in the first and second decade of life. Retrospective descriptive cross-sectional study was performed. Biopsy records were obtained from the archives of a Brazilian referral center between 1980 and 2016. A total of 2.114 biopsy records of pediatric patients were analyzed with oral and maxillofacial lesions. Data such as gender, age, anatomical location, and histopathological diagnosis were collected and categorized. Among all oral and maxillofacial lesions (n=2.114), were diagnosed 294 cases of odontogenic cysts (13.9%) and 16 cases of non-odontogenic cysts (0.8%). The most frequent lesions in each group were, respectively: radicular cyst (n=145) and epidermoid cyst (n=4). These lesions were most common in female (n=158), with a mean age of 14 years. For intraosseous lesions, the mandible (n=148) was the most affected anatomic site; moreover, the floor of the mouth (n=6) was most affected by cysts in soft tissues. Odontogenic cysts were relatively common in population studied, but non-odontogenic cysts were rare in these patients

Potentially malignant oral lesions: clinical and morphological analysis of 205 cases

Silveira , E. J. D. et al. Lesões orais com potencial de malignização: análise clínica e morfológica de 205 casos. J. Bras. Patol. Med. Lab., v. 45, n. 3, p. 233-238, jun 2009. ISBN 1676-2444.abstract Objective: The objective of this study was to perform a clinical and morphological analysis of potentially malignant oral lesions. Material and method: The clinical and morphological data related to these lesions were obtained from clinical and histopathological records, respectively. Results: Out of 205 cases, the most prevalent lesion was oral leukoplakia (70.7%), followed by actinic cheilitis (16.1%), erythroplakia (9.8%) and erythroleukoplakia (3.4%). There was a significant association between the lesions and gender (p < 0.001). The female gender was the most affected in leukoplakias and erythroplakias. Caucasians were mostly affected in all conditions. As far as anatomical location is concerned, the alveolar ridge was the most prevalent site in oral leukoplakias (21%); the palate was the most affected in erythroplakia (47.4%) and erythroleukoplakia (57.1%). There was no significant difference among the lesions as to age (p > 0.05), although they were more frequent in the 5th, 6th and 7th decades of life. In most cases of erythroplakias and erythroleukoplakias, it was observed that clinical and morphological diagnoses were incompatible. There was a significant association between malignant transformation and lesions (p < 0.001) as the erythroplakia presented a malignization rate of 20%, whereas in leukoplakias the rate was 2.1%. Conclusion: The prevalence of potentially malignant oral lesions was similar to other findings in the medical literature, but with some differences in their epidemiological profile. It is important to highlight that these entities require further medical investigation, mainly erythroplakias, which showed high risk of malignization and the highest rate of clinical misdiagnosis RESUME: Objetivos: O objetivo desta pesquisa foi realizar uma análise clínica e morfológica em lesões orais com potencial de malignização. Material e método: Os dados clínicos e morfológicos referentes a tais lesões foram obtidos a partir das fichas clínicas e dos laudos histopatológicos, respectivamente. Resultados: Dos 205 casos analisados, a lesão mais prevalente foi a leucoplasia (70,7%), seguida da queilite actínica (16,1%), eritroplasia (9,8%) e eritroleucoplasia (3,4%). Verificou-se uma associação significativa entre o sexo e as lesões (p < 0,001), sendo o sexo feminino mais prevalente nas leucoplasias e eritroplasias. A raça branca foi mais acometida em todas as lesões. Quanto à localização anatômica, o rebordo alveolar prevaleceu na leucoplasia (21%), na eritroplasia e eritroleucoplasia, o palato foi mais acometido com 47,4% e 57,1%, respectivamente. Com relação à idade, não houve diferença significativa entre as lesões (p > 0,05), sendo mais frequentes nas quinta, sexta e sétima décadas de vida. Observou-se que, na maioria dos casos de eritroplasias e eritroleucoplasias, os diagnósticos clínicos foram incompatíveis com o morfológico. Verificou-se associação significativa entre transformação maligna e lesões (p < 0,001), pois a eritroplasia apresentou uma taxa de malignização de 20%, enquanto na leucoplasia o índice foi de 2,1%. Conclusão: A prevalência das lesões orais com potencial de malignização foi semelhante ao encontrado na literatura, mas com algumas diferenças em relação ao perfil epidemiológico das mesmas, ressaltando-se que estas entidades merecem uma atenção especial por parte do clínico, especialmente as eritroplasias, que apresentaram um elevado percentual de malignização e o maior índice de equívocos no diagnóstico clínic

A retrospective 11-year study on lip lesions attended at an oral diagnostic service

The objective of this study was to describe the upper and lower lip lesion occurrence in an oral diagnostic service. Retrospective descriptive sectional study was performed. Clinical records were obtained from the archives of an Oral Diagnostic Service referral center between 2006 and 2016. Data such as gender, age, anatomical location, and diagnosis were collected and categorized. The collected data were submitted to a descriptive analysis and Pearson's chi-square test (p ? 0.05). A total of 587 patient records of lip lesions were analyzed. Most lesions were diagnosed in female (52.1%) and adults (56.9%) patients in the lower lip (76.2%). Among all lip lesions, the reactive/inflammatory lesions (n = 238; 40.5%) and oral potentially malignant disorders (n = 164; 28%) were the most frequent group lesions. Mucocele (n = 147; 25%), actinic cheilitis (n = 136; 23.1%) and vascular lesions (n = 51; 8.7%) were the most frequent lesion in the sample. Actinic cheilitis was significant in relation to gender (p < 0.001), all three most frequent lesions were significant in concerning to age group and anatomical site. Mucocele was the most common lower lip lesion in all age groups, followed by actinic cheilitis and vascular lesions, which mainly affected adults and the elderly

Prevalence of lip and perioral Ephelides in beach workers

BACKGROUND: Ephelides are small hyperpigmented macules common in the skin, presenting as areas with increased melanin production. Ephelides are observed in genetically predisposed individuals, particularly fair-skinned people highly susceptible to sunburn. OBJECTIVES: This study aimed to determine the prevalence of lip and perioral ephelides in 362 beach workers in the city of Natal (Rio Grande do Norte) and to investigate potential associations with sociodemographic, occupational and general health. METHODS: For this purpose clinical tests were performed by calibrated examiners in the epidemiological area around the lips and the area bounded laterally by the nasolabial groove and at the bottom by the chin. A questionnaire was completed and assessed. The possible associations between sociodemographic variables, occupational and general health with the presence of lip and perioral ephelides were evaluated by chi-square test for a significance level of 5%. RESULTS: Approximately one third of the workers were affected by perioral ephelides (33.7%) and around a quarter of them by lip ephelides (24.0%). Gender was the only variable significantly associated with the presence of perioral ephelides (p = 0.002), unlike lip ephelides which proved to be significantly associated with habits (p = 0.036) and alcoholism (0.030). CONCLUSIONS: The prevalence of ephelides in lip and perioral region was high in the study population, with gender and certain habits associated with its occurrence

Clinicopathological study of oral focal mucinosis : a retrospective case series

Oral focal mucinosis (OFM) is a rare soft tissue lesion of unknown etiology that exhibits tumor-like growth. It is considered the oral counterpart of cutaneous focal mucinosis or cutaneous myxoid cyst. This is a retrospective study of oral OFM diagnosed over a period of 42 years at an oral pathology service. Clinical, histopathological and immunohistochemical data were analyzed. Alcian blue staining and S-100 immunohistochemistry were performed. Eleven cases were retrieved (4:1 female-to-male ratio). The mean age was 44 years. The gingiva was the most affected site. The main clinical presentation was sessile or pedunculated lesions of fibrous or hyperplasic appearance, most of them asymptomatic. Positive Alcian blue staining and absence of S-100 protein were observed in all specimens, which supported the histological diagnosis of OFM. Surgical excision was the treatment of choice. Although rare, this study supports the inclusion of OFM in the differential diagnosis of intraoral myxoid lesions

Intraoral molluscum contagiosum in a young immunocompetent patient

Molluscum contagiosum (MC) is a contagious disease caused by a virus of the poxvirus family. In children, the disease commonly manifests as a variable number of discrete umbilicated papules on the face and trunk. In healthy and immunosuppressed adults, the disease appears on or near the genital organs and is often sexually transmitted. MC involving the intraoral mucosa has been documented but is rare. We report a case of MC involving the oral mucosa exclusively and discuss the main clinical, histopathologic, and therapeutic characteristics, comparing the findings with cases of this rare oral presentation described in the literatur

Lesões orais com potencial de malignização: análise clínica e morfológica de 205 casos

OBJETIVOS: O objetivo desta pesquisa foi realizar uma análise clínica e morfológica em lesões orais com potencial de malignização. MATERIAL E MÉTODO: Os dados clínicos e morfológicos referentes a tais lesões foram obtidos a partir das fichas clínicas e dos laudos histopatológicos, respectivamente. RESULTADOS: Dos 205 casos analisados, a lesão mais prevalente foi a leucoplasia (70,7%), seguida da queilite actínica (16,1%), eritroplasia (9,8%) e eritroleucoplasia (3,4%). Verificou-se uma associação significativa entre o sexo e as lesões (p 0,05), sendo mais frequentes nas quinta, sexta e sétima décadas de vida. Observou-se que, na maioria dos casos de eritroplasias e eritroleucoplasias, os diagnósticos clínicos foram incompatíveis com o morfológico. Verificou-se associação significativa entre transformação maligna e lesões (p < 0,001), pois a eritroplasia apresentou uma taxa de malignização de 20%, enquanto na leucoplasia o índice foi de 2,1%. CONCLUSÃO: A prevalência das lesões orais com potencial de malignização foi semelhante ao encontrado na literatura, mas com algumas diferenças em relação ao perfil epidemiológico das mesmas, ressaltando-se que estas entidades merecem uma atenção especial por parte do clínico, especialmente as eritroplasias, que apresentaram um elevado percentual de malignização e o maior índice de equívocos no diagnóstico clínico

Estudo retrospectivo de melanomas cutâneos e mucosos na população do estado do Rio Grande do Norte, Brasil

Introdução e objetivos: O melanoma é uma neoplasia maligna que pode acometer a pele e as mucosas. A taxa de incidência do melanoma cutâneo de forma geral tem aumentado nos últimos anos. Esta pesquisa realizou uma análise retrospectiva de melanomas cutâneos e mucosos no período de 30 anos em um serviço do Rio Grande do Norte, enfatizando características clínicas, conduta e evolução dos melanomas mucosos orais. Material e método: Nos prontuários clínicos, foram coletadas informações sobre idade, raça, sexo, localização o tipo de comprometimento da lesão, se primária ou metastática. Resultados: Um total de 397 casos de melanoma foi diagnosticado, sendo 332 cutâneos (83,6%) e 46 mucosos (11,6%). O tronco foi mais acometido (27,7%), seguido por membros inferiores (24,7%) e cabeça e pescoço (18,9%). Entre os melanomas mucosos, a maioria era de cabeça e pescoço (76,1%). De forma geral, 52,4% ocorreram em indivíduos do sexo masculino e 47,6%, no feminino. A idade média foi de 54,9 anos. Nos homens esteve mais presente nas sétima e oitava décadas de vida, e nas mulheres, nas quinta e sexta décadas. Seis casos (1,5%) acometeram a mucosa oral e estes ocorreram mais em indivíduos do sexo feminino, acima de 55 anos. Conclusão: O perfil epidemiológico dos casos de melanomas avaliados se assemelha aos poucos estudos epidemiológicos publicados, apesar de alguns dados, no tocante a sexo e idade em determinadas localizações anatômicas, terem variado e a incidência de melanomas orais ter sido bem mais baixa do que a relatada na maioria das pesquisas