Granuloma periférico de células gigantes: revisión de 87 casos / Peripheral giant-cell granuloma: a review of 87 cases

El granuloma periférico de células gigantes (GPCG) es una hiperplasiareactiva que se presenta sólo en la encía como respuesta a una irritación local o trauma crónico, sin predilección de género y edad variable. Objetivo: Identifi car las características demográfi cas e histopatológicas de 87 casos de GPCG en un servicio privado de patología bucal. Metodología: Se obtuvieron los datos de edad, género y diagnóstico clínico de 87 casos de GPCG. Se analizó la distribución por género y edad. Los cortes histológicos fueron examinados para confirmar el diagnóstico en 84 casos, ya que tres no presentaron las características del GPCG. Las características histopatológicas que se evaluaron fueron la presencia de estroma hipercelular, infi ltrado infl amatorio crónico, hemorragia, hemosiderina, tejidos mineralizados y úlcera. Resultados: De los 87 casos, tres fueron descartados por no corresponder al diagnóstico. En un periodo de 10 años se recibieron 6,696 biopsias, de las cuales 84 (1.2 por ciento) correspondieron a GPCG. Se presentó en un rango de edad de cinco a 90 años, con una media de edad de 42 años (± 19.9), siendomás frecuente en la quinta década de la vida y mostró predilección por el género femenino (58.5 por ciento). En los cortes histológicos se observó un estroma hipercelular con células de forma ovoide o fusiforme y células gigantes multinucleadas tipo osteoclasto, infi ltrado inflamatorio(66 por ciento), hemorragia (85 por ciento), hemosiderina (20 por ciento), tejidos mineralizados (11.9 por ciento) y úlcera (25 por ciento). Conclusión: El GPCG es una lesión exofítica reactiva de la encía que presenta características demográficas variables y que al examen microscópico se distingue por tener células gigantes multinucleadas tipo osteoclasto, además de otros componentes como tejidos mineralizados.

The peripheral giant-cell granuloma (PGCG) is a reactive hyperplasiathat occurs only in the gum, in response to local irritation orchronic trauma, with no predilection for either age or sex. Objective:To identify the demographic and histopathological characteristics of87 cases of PGCG in a private oral pathology service. Methodology:Data on the age, gender, and clinical diagnosis of 87 cases of PGCGwere obtained, which were analyzed to determine the distributionby sex and age. Histological sections were examined to confirm thediagnosis in 84 of the cases (three did not present any characteristicsof PGCG). The histopathologic features were evaluated for the presence of hypercellular stroma, chronic infl ammatory infi ltrate,hemorrhaging, hemosiderin, mineralized tissues, and ulcers. Results: of the 87 cases, 3 were eliminated as they did not match the requireddiagnosis. Over a 10-year period, 6,696 biopsies were received bythe pathology service, of which 84 (1.2%) were of PGCG. This was presented in patients ranging from 5 to 90 years old, the mean agebeing 42 years (± 19.9); it occurred most frequently in the 5th decadeof life and showed a predilection for females (58.5%). In the histologicsections, a hypercellular stroma with ovoid or fusiform cellsand multinucleated osteoclast-like giant cells was observed, as wellas infl ammatory infi ltrate (66%), hemorrhaging (85%), hemosiderin(20%), mineralized tissues (11.9%), and ulcers (25%). Conclusion:The PGCG is a reactive exophytic lesion of the gingiva that presentsvariable demographic features and which, under microscopic examination, is distinguished by multinucleated osteoclast-like giant cells, and other components as mineralized tissues.

A retrospective analysis of reactive hyperplastic lesions of the oral cavity: study of 1149 cases diagnosed between 2000 and 2011, Chile / Análisis retrospectivo de lesiones reaccionales hiperplásicas en mucosa oral: estudio de 1149 casos diagnosticados entre el 2000–2011 en chile

El objetivo de este estudio fue determinar la frecuencia relativa y distribución de lesiones reaccionales hiperplásicas (LRH) de la mucosa oral, presentes en el registro de biopsias del Servicio de Anatomía Patológica de la Facultad de Odontología, Universidad de Chile. Este estudio de tipo retrospectivo consistió en 1149 biopsias con diagnóstico histopatológico de LRH, entre los años 2000-2011. Las LRH se clasificaron en 5 grupos: Hiperplasia fibrosa (HF), granuloma piogénico (GP), granuloma periférico de células gigantes (GPCG) y fibroma osificante periférico(FOP). Los datos de edad y sexo de los sujetos, y de localización y tipo de lesión, fueron obtenidos del registro de biopsias de cada caso. De las LRH, la lesión más frecuente fue HF (71,1 por ciento), seguido de GP (21,1 por ciento), GPCG (5 por ciento) y FOP (2,9 por ciento) respectivamente. Las biopsias de LRH fueron mas frecuentes en mujeres (70,7 por ciento). El rango etario más afectado fue el de 50 a 59 años (22 por ciento). La localización de mayor frecuencia de LRH fue el maxilar superior (24,7 por ciento), seguida de mejilla (20,6 por ciento), lengua (19,4 por ciento), mandíbula (18,5 por ciento), labio inferior (9,9 por ciento) y labio superior (6,7 por ciento). En este estudio, de las LRH el diagnóstico más prevalente fue FH. El sexo más afectado fue el femenino, el rango etario el de 50 a 59 años y la ubicación más frecuente, maxilar superior. Estos resultados en general son concordantes con lo descrito en otros países.

The aim of this study was to determine the relative frequency and distribution of reactive hyperplastic lesions (RHL) of the oral mucosa at the Oral Pathology Institute of the School of Dentistry at the University of Chile. This was a retrospective study of 1149 biopsies with histopathological diagnosis of RHL, performed between 2000 and 2011. The RHL were classified in 4 groups: fibrous hyperplasia (FH), pyogenic granuloma (PG), peripheral giant-cell granuloma (PGCG) and peripheral ossifying fibroma (POF). Results: the most frequent RHL was FH (71. 1%), followed by PG (21.1%), PGCG (5 %) and POF (2.9%). RHLs were more frequent in women (70.7%). The most highly affected age group was the 50- to 59-year-olds (22%). The most frequent location for RHL was maxilla (24.7%), followed by cheek (20.6%), tongue (19.4%) and jaw (18.5%). The most prevalent RHL diagnosis was FH. Themost frequently affected sex was female, the most frequent agerange was 50-59 years, and the most frequent location, maxilla.

A retrospective study of trauma-associated oral and maxillofacial lesions in a population from southern Taiwan

OBJECTIVE: The aim of this retrospective analysis was to determine the age, gender, frequency and distribution of trauma-associated hard tissue and soft tissue lesions of the oral and maxillofacial region in a population from southern Taiwan. PATIENTS AND METHODS: Approximately 10 percent of the 27,995 biopsy records of patients with history of trauma resulting in lesions who were treated at our institution between 1991 and 2006 were examined for this study. RESULTS: In the included records, there were 2,762 soft tissue and 26 hard tissue lesions. Mucocele was the most frequent trauma-associated soft tissue lesion (955 cases). The youngest patients were those who presented with mucocele (mean age = 27.3 years), while the oldest patients were those with peripheral giant cell granuloma (58 years). The lower lip was the most frequent site of occurrence of mucocele (676, 64.5 percent) and was also the predominant site of occurrence of all soft tissue lesions (815, 29.5 percent), followed by the buccal mucosa (654, 23.4 percent) and the tongue (392, 14.2 percent). Trauma-associated hard tissue lesions included only osteoradionecrosis (24 cases) and traumatic bone cysts (2 cases). CONCLUSION: As little data of this nature have been reported from populations of Asian developing countries, the findings of this retrospective analysis is valuable for epidemiological documentation of type of traumatic oral lesions as well as for informing the professionals and the layman about the importance of this category of oral lesions.

Estudo comparativo da atividade proliferativa celular do fibroma ossificante periférico e da lesão de células gigantes periférica / Comparative study of the proliferative activity of the peripheral giant cells lesion and of peripheral ossifying fibroma

Foi realizado um estudo clínico retrospectivo descritivo e histoquímico de casos do fibroma ossificante periférico (FOP) e da lesão de células gigantes periférica (LCGP), coletados aleatoriamente no arquivo do Serviço de Diagnóstico Histopatológico da Universidade de Passo Fundo. O objetivo do trabalho foi comparar as atividades proliferativas celulares dessas lesões, visando o estabelecimento de uma conduta terapêutica adequada para cada uma das enfermidades. Os dados referentes ao sexo, idade, raça, localização da lesão e ocorrência de recidiva foram analisados e, o número de regiões organizadoras nucleolares (NORs) por núcleo de células ovóides foi determinado por meio do método de impregnação pela prata (Ag-NOR). Os resultados obtidos para o FOP foram de prevalência da lesão em mulheres (70%) da raça branca (60%) com média de idade de 28,11 anos, maior ocorrência da lesão na maxila anterior e índice de recidiva de 30%. O número médio de NORs foi de 1,72 para cada núcleo. Já para a LCGP, o sexo feminino também atingiu 70%, porém a média de idade foi de 42,90 anos e 100% dos pacientes pertenciam à raça branca. A ocorrência da lesão foi maior na região mandibular anterior e apresentou um índice de 20% de recidiva. Nesta lesão, o número médio de NORs foi de 1,93 por núcleo. Contudo, nos testes de correlação, nenhuma das características clínicas apresentou associação com o número médio de NORs por núcleo e a comparação desse número médio por núcleo nas LCGPs e nos FOPs não mostrou diferença significativa entre os grupos.

A retrospective clinical descritive and histochemical study envolving cases of periferic bone fibroma and of periferic giant cell lesion, randomly collected from the archives of Histophatologic Diagnostic Service of University of Passo Fundo was made. The objective of this work was to compare the proliferating cellular activities of these lesions, aiming the establishment of an adequate therapeutic conduct to each one of the disorders. The datas referring to the gender, age, race, position of the lesion and recurrence occurrence were analized and considered and the NORs’ numbers by egg-shaped cells’ nucleus were analized through the impregnation of silver method (Ag-NOR), getting as a result of periferic bone fibroma, 70% women, with an age average of 28.11 years old, where 60% of the pacients were white, and with the lesion’s position more often being on the front upper jaw, with the recurrence’s index up to 30%. The NORs’ average number was of 1.72 to each nucleus. On the periphery giant cell lesion, the female gender had also achieved 70%, however the age’s average was of 42.90 and 100% were white. The occurrence of the lesion was higher on the front inferior jaw and had showed a recurrence’s index of 20%. The NORs’ average of this lesion was 1.93 to each nucleus. Nevertheless, on the correlation’s tests none of these clinic characteristics showed a connection with the higher average’s number of NORs by nucleus and the comparison of NORs average’s number by nucleus on periphery bone fibroma and periphery giant cell lesion did not show a significant difference between the groups.

[Prevalence of peripheral soft connective tissue lesions in patients referred to pathology department of Shahid Beheshti dental school, 1981-2006]

Peripheral soft connective tissue lesions are common in oral mucosa and despite their benign nature can make problems for patients. According to our knowledge, a comprehensive study for these lesions was not performed in Iran General practitioners are commonly encountered affected with these lesions. They have not enough information about their clinical prevalence, may make mistake in diagnosis and treatment plan. The aim of this study was to evaluate peripheral soft connective tissue lesions prevalence in patients referred to Pathology department of Shahid Beheshti Dental School during 1981-2006. In this descriptive retrospective study [existing data], cases were patients that referred to Pathology Dept. [1981-2006] with complete files recorded in the Dept. Questionnaires included age, sex, location of lesion and lesion type which were retrieved from patient's files. The incomplete files were excluded. Finally the collected data were analyzed descriptively by SPSS Ver 11.0 software. A total number of 900 cases had peripheral soft connective tissue lesions during 1981-2006 from 4529 files in the department. 29.7% [268 cases] were irritation fibroma, 21.9% [197 cases] were peripheral giant cell granuloma, 19.5% [176 cases] were pyogenic granuloma, 19.3% [174 cases] were epulis fissuratum, 8% [72 cases] were peripheral ossifying fibroma, 0.5% [5 cases] were giant cell fibroma, 0.4% [4 cases] were oral focal mucinosis and 0.4% were inflammatory papillary hyperplasia. The most prevalent age was 50-59 years [18.1%] and 20-29 years [16.3%]. The lesions were more prevalent in women [61.9%] and were 38.1% in men. The most prevalent site was gingival [54.3%] and the least prevalent site was floor of the mouth [0.1%]. 19.9% peripheral soft connective tissue lesions were reported, the most frequent lesion was irritation fibroma that was similar to other reports

Aspectos radiológicos e epidemiológicos do granuloma central de células gigantes / Radiological and epidemiological aspects of central giant cell granuloma

OBJETIVO: Este estudo teve como objetivo avaliar os principais aspectos radiográficos e epidemiológicos das lesões de células gigantes (granulomas centrais de células gigantes e tumores marrons do hiperparatireoidismo). MATERIAIS E MÉTODOS: A amostra consistiu de 26 lesões de células gigantes diagnosticadas em 22 pacientes divididos em dois grupos, um deles composto por 17 pacientes que não tinham hiperparatireoidismo (grupo A) e o outro formado por cinco pacientes portadores de tal distúrbio (grupo B). RESULTADOS: O sexo feminino (72,7 por cento) foi o mais acometido. As lesões ocorreram mais freqüentemente na segunda década de vida, com média de idade de 27 anos. A mandíbula (61,5 por cento) foi o arco mais envolvido. Radiograficamente, 57,7 por cento das lesões eram multiloculares e 42,3 por cento eram uniloculares com limites definidos. Todas as 26 lesões provocaram expansão óssea, 15,4 por cento produziram reabsorção radicular, 50 por cento causaram deslocamento dentário e 11,5 por cento produziram dor. Na mandíbula, 18,7 por cento das lesões cruzavam a linha média. O grupo A apresentou 66,7 por cento das lesões na mandíbula e o grupo B mostrou igualdade na distribuição das lesões entre os arcos. O grupo A apresentou 66,7 por cento das lesões multiloculares e 33,3 por cento, uniloculares. O grupo B apresentou 62,5 por cento das lesões uniloculares e 37,5 por cento, multiloculares. CONCLUSÃO: As lesões de células gigantes podem manifestar-se, radiograficamente, com um amplo espectro, desde pequenas lesões uniloculares de crescimento lento até extensas lesões multiloculares. Elas apresentam características de benignidade, embora algumas lesões possam demonstrar um comportamento localmente agressivo.

OBJECTIVE: The present study was aimed at evaluating main radiological and epidemiological aspects of giant cell lesions (central giant cell granuloma and brown tumors of hyperparathyroidism). MATERIALS AND METHODS: The sample consisted of 26 giant cell lesions diagnosed in 22 patients divided into two groups, one of them including 17 patients who were not affected by hyperparathyroidism (group A) and another including five patients with such a disorder (group B). RESULTS: Prevalence was higher in female patients (72.7 percent). Most frequently, lesions occurred more in the second decade of life (mean age, 27 years). The mandible arc was most frequently involved (61.5 percent). Radiographically, 57.7 percent of lesions were multilocular and 42.3 percent were unilocular with defined limits. All of the 26 lesions caused expansion of bone, 15.4 percent radicular resorption, 50 percent dental displacement, and 11.5 percent produced pain. In the mandible 18.7 percent of the lesions crossed the midline. Group A showed 66.7 percent of lesions in the mandible and group B showed an even distribution of lesions between arches. In group A 66.7 percent of lesions were multilocular, and 33.3 percent unilocular; in group B 62.5 percent were unilocular, and 37.5 percent multilocular. CONCLUSION: Giant cells lesions may present themselves with a wide spectrum, from small, slow-growing unilocular lesions to extensive multilocular lesions. They present features of benignity, though some lesions may demonstrate a locally aggressive behavior.

Lesiones de células gigantes de los maxilares / Giant-cell lesions of the jaws

Teniendo en cuenta las dificultades diagnósticas que ofrecen las lesiones gigantocelulares de los maxilares, se realiza el presente artículo en el que se recoge una síntesis sobre estas lesiones desde el punto de vista clínico, radiológico e histopatológico. Se presentan fotos que ilustran los aspectos conceptuales debatidos y que constituyen parte de las discrepancias históricamente manejadas en torno a las mismas

Consideraciones radiográficas del granuloma gigano celular periférico con osificación. Presentación de diez casos / Radiographic considerations of the peripheral giant-cell granuloma with ossification. Report of ten cases

Se analizó una serie de 10 granulomas giganto celulares periféricos (GGCP) con osificación, ubicados en la encía y reborde alveolar. Todos los casos fueron estudiados desde el punto de vista radiográfico e histopatológico. Se presentó en proporción mayor en el femenino con respecto al masculino (6:4). El maxilar inferior fue más afectado que el maxilar superior (7:3). La edad promedio fue de 47,6 años. El aspecto clínico de la lesión fue generalmente de una tumoración pediculada, de superficie lisa lobulada y de consistencia firme. Se describen las características radiográficas con relación a su estructura interna y lesiones en hueso adyacente y dientes vecinos. La osificación interna adquirió diferentes grados de densidad. Las características radiográficas de las lesiones osificantes fueron de aspecto filiforme, fugiforme, o en tallo arborescente en conexión con la base de implantación, o de aspecto moteado sin conexión con la misma. Para obtener correctas imágenes en el GGCP cabe destacar la importancia de la toma de técnicas radiográficas retroalveolares adecuadas y el empleo de valores de kilovoltaje bajos, tiempo de exposición corto y un procesado adecuado

Prevalencia de lesiones histopatológicas bucales en la zona del Bajío (agosto del 90 a diciembre del 96) / Prevalence of histopathological oral lesions in the Bajio zone (August 90 trough December 96)

Objetivo: establecer la prevalencia de las lesiones histopatológicas bucales definiendo sus características clínicas, de pacientes en la región del Bajío, México, durante un período de seis años (agosto de 1990 a diciembre de 1996). Material y métodos. Se revisaron los registros de diagnósticos histopatológicos efectuados por el autor, de las lesiones diagnosticadas en el CUERPO, con el propósito de obtener la información epidemiológica correspondiente. Resultados. Durante el lapso del estudio, se efectuaron un total de 1.047 biopsias, predominando el sexo femenino y los pacientes de la década de los 20-29 años; participaron 18 instituciones canalizando sus biopsias para el diagnóstico histopatológico correspondiente, donde las universidades de la región aportaron el 53 por ciento de los mismos. Se diagnosticaron 300 lesiones diferentes, el granuloma periapical crónico infectado fue la lesión más frecuente. Las lesiones odontológicas prevalecieron. Las lesiones malignas representaron el 3.63 por ciento del total de las biopsias, siendo el carcinoma epidermoide la lesión maligna más frecuente

Lesöes pseudotumorais de maior prevalência na infância / Pseudotumoral lesions of more prevalence at childhood

O autor apresenta uma revisäo bibliográfica referente aos principais aspectos no estudo das lesöes pseudotumorais que acometem a populaçäo infantil com maior freqüência. Säo enfocados aspectos clínicos, radiográficos e histopatológicos, bem como fatores relacionados à etilogia, prevalência e conduta terapêutica frente a tais lesöes