No description available.

<p>Background and Aims: While a single &ldquo / high quality&rdquo / oral liquid based cytology (LBC) study has shown a high sensitivity and specificity for the technique in detection of oral dysplasia and malignancy, the high unit cost of this technology cannot be borne by the developing African countries. This study aims to evaluate the efficiency of an alternative cost-effective technique, Shandon PapSpin (PS) LBC in&nbsp / diagnosis of oral and oropharyngeal dysplasia and malignancy. Materials and Methods.We compared the diagnostic accuracy of Shandon PS LBC with that of scalpel biopsy in 69 patients. Transepithelial cytology specimens were obtained using a cervical Cytobrush. The cytology specimens were graded and scored using a novel oral cytologic grading and scoring system respectively. Results: Histological diagnosis of dysplasia or invasive squamous cell carcinoma was made in 51 of the 69 cases. Histology confirmed the cytological diagnosis of dysplasia or malignancy in 49 of the 51 cases. There were two false negative and no false positive cases. The sensitivity was 96% and the specificity 100%. The cytologic grade correlated positively with histologic grade. The best cut off value for distinguishing reactive/mildly dysplastic lesions from high 9 grade/invasive squamous cell carcinoma was determined as a cytologic score of 3, representing a sensitivity of 95% and a specificity of 96%. Conclusion: The Shandon PS LBC in association with transepithelial brush biopsy technique (TBBT) is a highly sensitive, specific and economical screening test in detection of oral and oropharyngeal dysplasia and malignancy. The proposed oral cytologic grading system correlates well with histology. The novel oral cytologic scoring system shows promise as a simple, reliable and reproducible scoring system. In addition, the liquid residual allows for immunocytochemical (Podoplanin) testing.</p>

<p>Background and Aims: While a single &ldquo / high quality&rdquo / oral liquid based cytology (LBC) study has shown a high sensitivity and specificity for the technique in detection of oral dysplasia and malignancy, the high unit cost of this technology cannot be borne by the developing African countries. This study aims to evaluate the efficiency of an alternative cost-effective technique, Shandon PapSpin (PS) LBC in&nbsp / diagnosis of oral and oropharyngeal dysplasia and malignancy. Materials and Methods.We compared the diagnostic accuracy of Shandon PS LBC with that of scalpel biopsy in 69 patients. Transepithelial cytology specimens were obtained using a cervical Cytobrush. The cytology specimens were graded and scored using a novel oral cytologic grading and scoring system respectively. Results: Histological diagnosis of dysplasia or invasive squamous cell carcinoma was made in 51 of the 69 cases. Histology confirmed the cytological diagnosis of dysplasia or malignancy in 49 of the 51 cases. There were two false negative and no false positive cases. The sensitivity was 96% and the specificity 100%. The cytologic grade correlated positively with histologic grade. The best cut off value for distinguishing reactive/mildly dysplastic lesions from high 9 grade/invasive squamous cell carcinoma was determined as a cytologic score of 3, representing a sensitivity of 95% and a specificity of 96%. Conclusion: The Shandon PS LBC in association with transepithelial brush biopsy technique (TBBT) is a highly sensitive, specific and economical screening test in detection of oral and oropharyngeal dysplasia and malignancy. The proposed oral cytologic grading system correlates well with histology. The novel oral cytologic scoring system shows promise as a simple, reliable and reproducible scoring system. In addition, the liquid residual allows for immunocytochemical (Podoplanin) testing.</p>

Magister Chirurgiae Dentium - MChD / Background and Aims: While a single “high quality” oral liquid based cytology (LBC) study has shown a high sensitivity and specificity for the technique in detection of oral dysplasia and malignancy, the high unit cost of this technology cannot be borne by the developing African countries. This study aims to evaluate the efficiency of an alternative cost-effective technique, Shandon PapSpin (PS) LBC in diagnosis of oral and oropharyngeal dysplasia and malignancy. Materials and Methods.We compared the diagnostic accuracy of Shandon PS LBC with that of scalpel biopsy in 69 patients. Transepithelial cytology specimens were obtained using a cervical Cytobrush. The cytology specimens were graded and scored using a novel oral cytologic grading and scoring system respectively. Results: Histological diagnosis of dysplasia or invasive squamous cell carcinoma was made in 51 of the 69 cases. Histology confirmed the cytological diagnosis of dysplasia or malignancy in 49 of the 51 cases. There were two false negative and no false positive cases. The sensitivity was 96% and the specificity 100%. The cytologic grade correlated positively with histologic grade. The best cut off value for distinguishing reactive/mildly dysplastic lesions from high 9 grade/invasive squamous cell carcinoma was determined as a cytologic score of 3, representing a sensitivity of 95% and a specificity of 96%. Conclusion: The Shandon PS LBC in association with transepithelial brush biopsy technique (TBBT) is a highly sensitive, specific and economical screening test in detection of oral and oropharyngeal dysplasia and malignancy. The proposed oral cytologic grading system correlates well with histology. The novel oral cytologic scoring system shows promise as a simple, reliable and reproducible scoring system. In addition, the liquid residual allows for immunocytochemical (Podoplanin) testing. / South Africa

Två huvudsakliga metodprinciper används inom cytologi för diagnostisering av cellförändringar, nämligen konventionell och vätskebaserad metod. De kan båda appliceras på såväl gynekologiska som icke-gynekologiska prover, där den senare bland annat omfattar olika sorters exsudat. Syftet med den här studien var att utveckla metoden för den vätskebaserade metoden så att etanolfixerade exsudat kunde prepareras och även påvisa bättre resultat än då de preparerats med konventionell metod. För att göra detta har 61 unika prover kategoriserade som exsudat preparerats totalt, varav 61 med konventionell metod, 54 med vätskebaserad metod och 22 med vätskebaserad metod med tillsats av ättiksyra. De färdiga glasen bedömdes sedan i mikroskop och gavs scorevärden utifrån fyra parametrar: mängden celler exklusive inflammatoriska celler; bedömbarheten av cellmorfologin; mängden inflammatorisk komponent samt mängden bakgrundsmaterial. Resultaten visade ingen förbättring mellan de glas som preparerats med konventionell eller vätskebaserad metod. Däremot visade resultaten för de ättiksyrabehandlade proverna på förbättrade scorevärden jämfört med de andra metoderna. Som slutsats drogs att vätskebaserad metod med tillsats av ättiksyra uppnår syftet eftersom det reducerar mängden bakgrundsmaterial, förekomst av ring på objektglasen samt vidhåller en god cellmorfologi, vilket gör proverna lättare att diagnostisera för cytodiagnostikerna. / Two main principles is used within cytology in order to diagnose cytological abnormalities; conventional and liquid-based cytology. Both methods can be applied on both gynaecological and non-gynaecological samples of which the later includes samples categorized as exudate. The aim of this study was to develop the method for liquid-based cytology so that exudate fixated with ethanol could be prepared and also achieve better results compared to conventional method. In order to do so, 61 unique samples were prepared of which 61 with conventional method, 54 with liquid-based method and 22 with liquid-based method with added acetic acid. The slides was then examined in microscope and was given score values within four parameters: amount of cells; cell morphology; amount of inflammatory component and amount of background. The results indicated no difference between the slides prepared with conventional or liquid-based method. However, the slides prepared with addition of acetic acid indicated more opportunistic score values when compared. The conclusion was that liquid-based method with the addition of acetic acid did satisfy the aim of this study as it reduces the amount of background, reduces “ring formation” on the slides and preserve the cells morphology well, which makes the samples easier to diagnose.

Liquid-based cytology (LBC) has replaced conventional smears in the UK. The National Institute for Health and Clinical Excellence (NICE) recommended the use of LBC in 2003. ThinPrepTM (TP) and SurePathTM (SP) LBC systems were adopted for use in the National Health Service Cervical Screening Programme (NHSCSP) in the UK. NICE recommended further review of any other technologies or other liquid-based cytology systems in the future. For any second-generation LBC systems to be considered for cervical screening in the NHSCSP, there must be an evaluation of technical requirements and clinical data relating to their sensitivity, specificity and the percentage of inadequate samples.The objective of the work undertaken for this thesis was to provide evidence to enable an informed decision on the use of second-generation liquid-based cytology systems for cervical screening in the UK. The decision to accept the second-generation LBC system in the NHSCSP is based on its reliability, clinical effectiveness and cost implications. This work will determine the reliability, microscopic quality and reproducibility of slides of the second-generation LBC system, and the results of this work will form the platform for progression to the clinical evaluation of the system.Initially, four second-generation LBC systems were considered suitable for evaluation. They were Seroa CYTO-screen, Shandon Papspin, LGM Liqui-PREP and CellSolution 120. However, the specifications of only one system (CellSolution 120TM) met NHSCSP technical requirements to start the evaluation. One hundred random, electronically generated colposcopy patient samples were used to assess the technical reliability of the CellSolution 120TM system. The technical evaluation consisted of pre-phase I and phase I. The results of these phases will decide whether the CS 120TM liquid-based cytology system could be carried further for clinical evaluation (phase II) or not.This study was sponsored by the NHS Purchasing and Supply Agency (PASA), the Centre for Evidence based Purchasing (CEP) on behalf of the NHSCSP. The Manchester Cytology Centre (MCC) was selected as the site for evaluation of CellSolution 120™ and the project was managed by Guildford Medical Device Evaluation Centre (GMEC) on behalf of CEP.

Submitted by Isaac Francisco de Souza Dias (isaac.souzadias@ufpe.br) on 2016-03-04T17:16:30Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) MICHELINE OLIVEIRA LOBO PEREIRA DA COSTA- TESE DOUTORADO -23-10-2015.pdf: 15371820 bytes, checksum: 4afd4b560150641ba2dc59721bbb563e (MD5) / Made available in DSpace on 2016-03-04T17:16:30Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) MICHELINE OLIVEIRA LOBO PEREIRA DA COSTA- TESE DOUTORADO -23-10-2015.pdf: 15371820 bytes, checksum: 4afd4b560150641ba2dc59721bbb563e (MD5) Previous issue date: 2015-01-23 / CAPES / O presente estudo avaliou o desempenho da metodologia citológica de base líquida (ThinPrep-TP) com o da citologia convencional de Papanicolaou (CC) no diagnóstico de alterações citopatológicas e de resultados insatisfatórios, sob a visão de um serviço público no estado de Pernambuco (LACEN-PE) e da Fundação Oncocentro de São Paulo (FOSP-SP). Também foram avaliadas as associações entre a presença de coinfecções genitais dos subtipos de Human papillomavirus (HPV) com Chlamydia trachomatis (CT) e/ou outras microfloras, com os diferentes estágios de alterações cervicais das pacientes. A população do estudo foi de 525 mulheres na faixa etária dos 18-65 anos, atendidas por demanda espontânea, pelas Unidades Básicas de Saúde no Estado de Pernambuco, no período de abril a novembro de 2011. Um questionário padronizado com informações sobre características sociodemográficas, sexuais, reprodutivas e de hábitos (tabagismo, consumo de bebidas alcoólicas e uso de drogas) foram obtidos de todas as pacientes do estudo. A presença de DNA do HPV e da CT foram diagnósticadas através da reação em cadeia da polimerase (PCR) e o exame citológico foi realizado para detecção das demais infecções. Para avaliar a relação das infecções genitais com a presença de alterações intraepiteliais cervicais, foi utilizado o teste exato de Fisher. Os resultados mostraram que 11,05% das pacientes tinham menos de 25 anos, 30,86% eram solteiras, 6,86% tiveram mais de 5 parceiros sexuais, 44% não faziam uso de métodos contraceptivos, 38,85% eram usuárias de álcool, 24,38% eram fumantes e 3,24% haviam consumido drogas. Além disso, 42,01% tinham queixas ginecológicas; e 12,19% história pregressa de doenças sexualmente transmissíveis (DST). Quando comparadas a eficiência das técnicas TP e CC sob a visão do LACEN-PE, observou-se que as duas metodologias avaliadas apresentaram fraca concordância entre os métodos (k=0,19;95%IC(0,11-0,26); p<<0,001). A metodologia TP reduziu a taxa de resultados insatisfatórios de 4,38% para 1,71% (×2= 5,28; p=0,02), e o número de alterações citopatológicas diagnosticadas aumentaram de 2,47% para 3,04%. Porém sob a avaliação da FOSP-SP, as duas metodologias apresentaram concordância (k=0,39;95%IC(0,29-0,50); p<<0,001). A metodologia TP apresentou taxas insatisfatórias e praticamente semelhantes de 3,20% para 3,60% (×2= 5,00; p=0,17), e de alterações citopatológicas de 5,60% para 4,20%. Em 87 casos, foram observadas alterações cervicais por uma das metodologias utilizadas; destas, em 83,91% foram detectados CT e 82,76% foram positivas para HPV, ocorrendo coinfecção em 65 casos (74,7%). Em 93,1% dos casos houveram alterações colposcópicas, observando-se uma associação estatisticamente significativa entre coinfecção HPV-CT e presença de lesão (p=0.037). Outras microfloras encontradas foram Gardnerella vaginalis (35,6%), cocos (18,4%), Candida sp (9,2%), Trichomonas vaginalis (6,9%), Lactobacillus sp (4,6%) e herpesvírus (1,15%). Flora mista (coinfecção por várias microfloras – com exceção de CT simultaneamente) ocorreram em 41,38% dos casos. No entanto, nenhuma associação da presença desses microrganismos não-virais e os herpesvírus com a gravidade das lesões intraepiteliais foram encontradas. Os subtipos de HPV mais frequentes foram 16 e 31 (34,3% e 17,15%, respectivamente). Porém nas lesões de maior gravidade, os mais prevalentes foram 16 e 18. Desta forma, concluimos que este estudo demonstra a superioridade da metodologia TP no diagnóstico citológico das amostras cervicais o que poderá contribuir na diminuição de possíveis perdas por repetição citológica e seguimento das pacientes. É importante chamar atenção para as infecções genitais, em especial a CT, que devem sem investigadas e tratadas adequadamente, haja vista, que coinfecções com o HPV estão associadas ao favorecimento de lesões cervicais, e podem evoluir a graus mais avançados. / This study evaluated the performance of cytological methodology net basis (ThinPrep-TP) with the conventional Pap cytology (CC) in the diagnosis of cytopathological findings and unsatisfactory results under the vision of a public service in the state of Pernambuco (LACEN -PE) and Oncocentro Foundation of São Paulo (FOSP-SP). We also evaluated whether there is an association between the presence of genital co-infections of human papillomavirus subtypes (HPV) with Chlamydia trachomatis (CT) and or other microflora, with the different stages of cervical abnormalities of patients. The study population of 525 women between the ages of 18-65 years, assisted by spontaneous demand, the Basic Health Units in the State of Pernambuco, in the period from April to November 2011. A standardized questionnaire with information on sociodemographic characteristics, sexual, reproductive habits (such as smoking, alcohol consumption and drug use) were obtained from all study patients. The presence of HPV DNA and CT were both diagnosed by polymerase chain reaction (PCR) and cytological examination was performed to detect other infections. To evaluate the relationship of genital infections with the presence of cervical intraepithelial changes, Fisher's exact test was used. The results showed that 11.05% of patients were under 25yrs, 30.86% were single, 6.86% had more than five sexual partners, 44% did not use contraception, 38.85% were users of alcohol, 24.38% smokers and 3.24% had used drugs before. Moreover, gynecological complaints were 42.01%; and 12.19% history of STD. When comparing the efficiency of two techniques used in diagóstico of cervical abnormalities in the view of LACEN-PE, it was observed that the two methodologies evaluated showed poor agreement between the methods (k = 0.19; 95% CI (0,11- 0.26), p << 0.001). TP method reduced the rate of unsatisfactory 4.38% to 1.71% (5.28 = 2 × p = 0.02) and the number of cytopathological changes diagnosed increased 2.47% to 3 04%. But in the assessment of FOSP-SP, the two methodologies showed reasonable agreement (k = 0.39; 95% CI (0.29 to 0.50); p << 0.001) .The TP methodology showed unsatisfactory results virtually rates similar 3.20% to 3.60% (× 2 = 5.00; p = 0.17), and cytological changes from 5.60% to 4.20%. In 87 cases, cervical abnormalities were observed by any of the methods used, and of these, 83.91% were detected CT, and 82.76% were positive for HPV, occurring co-infection in 65 cases (74.7%). In 93.1% of cases there were colposcopic changes, observing a statistically significant association between co-infection HPV-CT and presence of lesions (p = 0.037). Other microflora were found Gardnerella vaginalis (35.6%), coconut (18.4%), Candida sp (9.2%), Trichomonas vaginalis (6.9%), Lactobacillus sp (4.6%) and herpesviruses (1.15%). Mixed flora (co-infection with various microflora - CT exception with both) occurred in 41.38% of cases. However, no association between the presence of non-viral organisms and herpesviruses with the severity of intraepithelial lesions were found. The most common HPV subtypes there were 16 and 31 (34.3% and 17.15%, respectively). But in more severe injuries, the most prevalent were 16 and 18. Thus, we conclude that this study demonstrates the superiority of TP methodology in the cytological diagnosis of cervical samples which could contribute to decrease possible losses by repetition and cytologic follow-up of patients . It is important to draw attention to the genital infections, especially CT, which are not investigated and dealt with appropriately, given that co-infections with HPV are associated with the favoring of cervical lesions, and can progress to more advanced degrees.

A Anemia de Fanconi (AF) é uma doença genética rara de herança recessiva caracterizada por insuficiência da medula óssea, anormalidades de desenvolvimento malformações congênitas. A doença evolui para anemia aplástica grave em decorrência da falência progressiva da medula óssea e neoplasias malignas, principalmente a leucemia mielóide aguda e os carcinomas espinocelulares em região de cabeça e pescoço. O risco de desenvolvimento de neoplasias malignas aumenta após o transplante de medula óssea TMO), e recentemente foi proposta a participação do papilomavírus humano (HPV) na carcinogênese na AF. Neste estudo foram realizados exame físico da boca, coleta de amostras de esfregaços de células epiteliais orais por meio da citologia em base líquida, avaliação quanto à presença de atipias de acordo com a classificação de Papanicolaou, análise citomorfométrica das células epiteliais orais, detecção do HPV por meio de técnicas de PCR e tipificação das amostras positivas por meio de hibridização reversa. A amostra foi dividida em 4 grupos: pacientes com AF transplantados (I) e não transplantados de medula óssea (II), pacientes com Anemia aplástica severa (AAS) transplantados (III) e um grupo de indivíduos saudáveis (controle) (IV). Ao exame físico não foram detectadas lesões malignas. Os resultados mostraram que, em comparação ao grupo controle: a) houve aumento da área do núcleo (NA) das células epiteliais orais na AF e na AAS (p<0,05); b) houve aumento da área do citoplasma (CA) na AF (p<0,05); c) houve diminuição da razão NA/CA na AF em pacientes transplantados (p<0,05), aumento desta na AAS (p<0,05) e ausência de alterações nos pacientes com AF não transplantados de medula óssea; d) foi encontrada alta prevalência do HPV nos pacientes tranplantantados de medula óssea para AF (35%, p<0,05) e AAS (38%, p<0,05), enquanto que nos pacientes com AF não transplantados 27,27%) não houve diferença estatisticamente significativa em relação ao grupo controle 6,25%) e e) o HPV-16, de alto risco para transformação maligna, foi o genótipo mais freqüente (grupo I 71,42%, grupo II 33,33%, grupo III 28,57%, grupo IV 0%). O risco relativo em apresentar a infecção pelo HPV foi maior nos pacientes transplantados, tendo sido influenciado pela idade e pelo tempo de TMO. Em conclusão, estes resultados demonstraram que existem alterações na morfometria das células epiteliais orais na AF e há alta prevalência de HPVs, especialmente HPV-16, na boca de pacientes sem lesões orais malignas. / Fanconis anemia (FA) is a rare recessive genetic disorder characterized by boné marrow failure, developmental malformations and congenital abnormalities. FA progressive bone marrow failure usually evolves to aplastic anemia and malignant neoplasias, especially acute myeloid leukemia and head and neck squamous cell carcinomas. The risk of malignancies is increased after bone marrow transplantation (BMT), and recently the role of human papillomavirus (HPV) in FA carcinogenesis was proposed. We performed an oral examination, liquid based cytology sampling of oral epithelial cells, assessment of atypias according to Papanicolaou classification, cytomorphometric analysis of oral epithelial cells, HPV screening by PCR and genotyping by reverse hybridization. Sample subjects were divided into 4 groups: BMT FA patients (I), not BMT FA patients (II), BMT severe aplastic anemia patients (SAA) and a healthy control group (IV). No malignant lesions were detected on oral examination. In comparison with the control group the results showed: a) an increase in the nuclear area (NA) in oral epithelial cells in FA and SAA (p<0.05); b) an increase in the cytoplasmic area (CA) in FA (p<0.05); c) a decrease in the NA/CA ratio in BMT FA patients (p<0.05), an increase of it in SAA (p<0.05) and no alterations in not BMT FA patients; d) a high HPV prevalence was detected in BMT FA (35%, p<0.05) and SAA patients (38%, p<0.05), whereas in not BMT FA patients (27.27%) there was not a significant statistical difference in comparison with the control group (6.25%) and e) the high risk, HPV-16, was the most frequent genotype (group I 71.42%, group II 33.33%, group III 28.57%, group IV 0%). HPV infection odds ratio adjusted for age and years of BMT showed an increase in HPV infection for both factors. In conclusion, results demonstrated that there were morphometric alterations in oral epithelial cells in FA and a high prevalence of oral HPV, especially HPV-16, in these patients without malignant lesions.

Made available in DSpace on 2014-12-17T14:16:38Z (GMT). No. of bitstreams: 1 RandRM.pdf: 491733 bytes, checksum: 93fd5e529dea72386495c9d4b3d94d8f (MD5) Previous issue date: 2006-08-18 / Hormone therapy is an important tool in the treatment of breast cancer and tamoxifen represents one of the most important drugs used in this type of treatment. Recently other drugs based on the inhibition of aromatase had been developed, this enzyme is responsible for the synthesis of estrogenic esteroids from the androgenic ones. The objective of this study would be the development of a quantitative cytological model of murine estral analysis that allowed the characterization of different hormone drugs effect over vaginal epithelium. The technique of monochromatic staining with Evans blue (C.I. 23860) showed to be efficient in the qualitative and quantitative classification of the cycle. It had been observed differences in the cytological standard of animals submitted to the studied drugs; tamoxifen presented a widening of phases of lesser maturation (diestrais), while anastrozole and exemestane increased the duration of the phases of larger maturation (estrais). The data were analysed through a cubical non linear regression (spline) which allowed a better characterization of the drugs, suggesting a proper cytological profile to the antagonism of the estrogen receptor (tamoxifen), aromatase competition (anastrozole) and inhibition of the enzyme (exemestane) / A hormonioterapia ? um importante recurso no tratamento do c?ncer de mama e o tamoxifeno representa o f?rmaco mais empregado neste tipo de tratamento. Recentemente foram desenvolvidos outros f?rmacos baseados na inibi??o da aromatase, enzima respons?vel pela s?ntese de ester?ides estrog?nicos a partir de androg?nios. O objetivo deste estudo seria o desenvolvimento de um modelo citol?gico quantitativo de analise estral murina que permitisse a caracteriza??o dos efeitos farmacol?gicos de diferentes hormonioter?picos sob epit?lio vaginal. A t?cnica de colora??o monocrom?tica com Azul de Evans (C.I. 23860) mostrou-se eficaz na classifica??o qualitativa e quantitativa do ciclo. Observou-se diferen?as no padr?o citol?gico de animais submetidos aos f?rmacos em estudo; onde o tamoxifeno apresentou alargamento das fases de menor matura??o (diestrais), enquanto que o anastrozol e o exemestano incrementaram a dura??o das fases de maior matura??o (estrais). O tratamento dos dados atrav?s de uma regress?o n?o linear por spline c?bica permitiu melhor caracteriza??o dos f?rmacos, sugerindo um perfil citol?gico pr?prio ao antagonismo do receptor de estr?geno (tamoxifeno), competi??o da aromatase (anastrozol) e inibi??o da enzima (exemestano)

A Anemia de Fanconi (AF) é uma doença genética rara de herança recessiva caracterizada por insuficiência da medula óssea, anormalidades de desenvolvimento malformações congênitas. A doença evolui para anemia aplástica grave em decorrência da falência progressiva da medula óssea e neoplasias malignas, principalmente a leucemia mielóide aguda e os carcinomas espinocelulares em região de cabeça e pescoço. O risco de desenvolvimento de neoplasias malignas aumenta após o transplante de medula óssea TMO), e recentemente foi proposta a participação do papilomavírus humano (HPV) na carcinogênese na AF. Neste estudo foram realizados exame físico da boca, coleta de amostras de esfregaços de células epiteliais orais por meio da citologia em base líquida, avaliação quanto à presença de atipias de acordo com a classificação de Papanicolaou, análise citomorfométrica das células epiteliais orais, detecção do HPV por meio de técnicas de PCR e tipificação das amostras positivas por meio de hibridização reversa. A amostra foi dividida em 4 grupos: pacientes com AF transplantados (I) e não transplantados de medula óssea (II), pacientes com Anemia aplástica severa (AAS) transplantados (III) e um grupo de indivíduos saudáveis (controle) (IV). Ao exame físico não foram detectadas lesões malignas. Os resultados mostraram que, em comparação ao grupo controle: a) houve aumento da área do núcleo (NA) das células epiteliais orais na AF e na AAS (p<0,05); b) houve aumento da área do citoplasma (CA) na AF (p<0,05); c) houve diminuição da razão NA/CA na AF em pacientes transplantados (p<0,05), aumento desta na AAS (p<0,05) e ausência de alterações nos pacientes com AF não transplantados de medula óssea; d) foi encontrada alta prevalência do HPV nos pacientes tranplantantados de medula óssea para AF (35%, p<0,05) e AAS (38%, p<0,05), enquanto que nos pacientes com AF não transplantados 27,27%) não houve diferença estatisticamente significativa em relação ao grupo controle 6,25%) e e) o HPV-16, de alto risco para transformação maligna, foi o genótipo mais freqüente (grupo I 71,42%, grupo II 33,33%, grupo III 28,57%, grupo IV 0%). O risco relativo em apresentar a infecção pelo HPV foi maior nos pacientes transplantados, tendo sido influenciado pela idade e pelo tempo de TMO. Em conclusão, estes resultados demonstraram que existem alterações na morfometria das células epiteliais orais na AF e há alta prevalência de HPVs, especialmente HPV-16, na boca de pacientes sem lesões orais malignas. / Fanconis anemia (FA) is a rare recessive genetic disorder characterized by boné marrow failure, developmental malformations and congenital abnormalities. FA progressive bone marrow failure usually evolves to aplastic anemia and malignant neoplasias, especially acute myeloid leukemia and head and neck squamous cell carcinomas. The risk of malignancies is increased after bone marrow transplantation (BMT), and recently the role of human papillomavirus (HPV) in FA carcinogenesis was proposed. We performed an oral examination, liquid based cytology sampling of oral epithelial cells, assessment of atypias according to Papanicolaou classification, cytomorphometric analysis of oral epithelial cells, HPV screening by PCR and genotyping by reverse hybridization. Sample subjects were divided into 4 groups: BMT FA patients (I), not BMT FA patients (II), BMT severe aplastic anemia patients (SAA) and a healthy control group (IV). No malignant lesions were detected on oral examination. In comparison with the control group the results showed: a) an increase in the nuclear area (NA) in oral epithelial cells in FA and SAA (p<0.05); b) an increase in the cytoplasmic area (CA) in FA (p<0.05); c) a decrease in the NA/CA ratio in BMT FA patients (p<0.05), an increase of it in SAA (p<0.05) and no alterations in not BMT FA patients; d) a high HPV prevalence was detected in BMT FA (35%, p<0.05) and SAA patients (38%, p<0.05), whereas in not BMT FA patients (27.27%) there was not a significant statistical difference in comparison with the control group (6.25%) and e) the high risk, HPV-16, was the most frequent genotype (group I 71.42%, group II 33.33%, group III 28.57%, group IV 0%). HPV infection odds ratio adjusted for age and years of BMT showed an increase in HPV infection for both factors. In conclusion, results demonstrated that there were morphometric alterations in oral epithelial cells in FA and a high prevalence of oral HPV, especially HPV-16, in these patients without malignant lesions.