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Hawkins AT, Fang SH. Anal Squamous Intraepithelial Lesions and Anal Cancer Management in Low Resource Settings. Clin Colon Rectal Surg 2022; 35:396-401. [PMID: 36111083 PMCID: PMC9470285 DOI: 10.1055/s-0042-1746188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
A low resource setting (LRS) is defined as a health care system which does not meet the criteria defined by the World Health Organization (WHO) or other national/international organizations in the following areas: infrastructure, materials, and human resources. 1 Patients encounter barriers which limit their access to care and services that are considered standard of care. While LRS is most commonly associated with developing countries, it is easy to overlook communities in developed countries which lack the financial resources to afford basic health care. This article describes the societal implications and barriers to care for both squamous intraepithelial lesions (SILs) and anal cancer in LRS, the existing screening/surveillance approaches, available treatment approaches to anal cancer, and it also discusses potential evidence-based approaches to bridge the gap for these disparities in anal cancer care.
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Affiliation(s)
- Alexander T. Hawkins
- Department of Surgery, Section of Colon and Rectal Surgery, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Sandy H. Fang
- Department of Surgery, Oregon Health and Science University, Portland, Oregon
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2
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Oliveira CR, Niu YS, Einarsdottir HM, Niccolai LM, Shapiro ED. Disparities in the Epidemiology of Anal Cancer: A Cross-Sectional Time Series. Health Equity 2020; 4:382-385. [PMID: 32964175 PMCID: PMC7501948 DOI: 10.1089/heq.2020.0021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/24/2020] [Indexed: 11/13/2022] Open
Abstract
Purpose: To assess the trends and sociodemographic disparities of anal cancer. Methods: For this time series, billing claims were reviewed for all encounters between 2007 and 2011 in the Yale New Haven Health System. Results: There were 80 new cases identified. Decreasing trends were seen in women and increasing trend in men (−30.1% and 27.3%). Diagnoses were more common in areas with the highest proportion of racial minorities (incidence rate ratio [IRR]=1.75; p≤0.01) and poverty (IRR=1.72; p=0.04). Conclusions: Anal cancer continues to rise in men during the postvaccine era. Communities with the highest proportion of poverty and racial/ethnic minority groups bear the highest burden of disease.
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Affiliation(s)
- Carlos R Oliveira
- Department of Pediatrics, Yale School of Medicine, New Haven, Connecticut, USA
| | - Yu S Niu
- Department of Pediatrics, Yale School of Medicine, New Haven, Connecticut, USA
| | | | - Linda M Niccolai
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, Connecticut, USA
| | - Eugene D Shapiro
- Department of Pediatrics, Yale School of Medicine, New Haven, Connecticut, USA
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3
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Kelly H, Chikandiwa A, Alemany Vilches L, Palefsky JM, de Sanjose S, Mayaud P. Association of antiretroviral therapy with anal high-risk human papillomavirus, anal intraepithelial neoplasia, and anal cancer in people living with HIV: a systematic review and meta-analysis. Lancet HIV 2020; 7:e262-e278. [PMID: 32109408 DOI: 10.1016/s2352-3018(19)30434-5] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Revised: 12/12/2019] [Accepted: 12/19/2019] [Indexed: 02/08/2023]
Abstract
BACKGROUND The effect of antiretroviral therapy (ART) on the natural history of anal high-risk HPV and anal lesion progression is not well established. We reviewed the association of ART and other HIV-related factors on anal HPV infection, anal intraepithelial neoplasia (AIN), and anal cancer among people living with HIV. METHODS For this systematic review and meta-analysis, we searched MEDLINE and EMBASE for studies published between Jan 1, 1996, and Oct 30, 2019, that reported the association of HIV-related exposures (ART or highly active ART [HAART], HIV-RNA plasma viral load [PVL], and nadir or current CD4 cell count) with outcomes of anal high-risk HPV prevalence, incidence, and persistence; prevalence, incidence, progression, or regression of anal histological and cytological abnormalities; and anal cancer incidence. Effect estimates were extracted whenever available; otherwise, they were calculated from raw data. We assessed the risk of bias of included studies using the Newcastle-Ottawa scale, and random-effects meta-analyses were done to examine heterogeneity using the I2 statistic. This study is registered on the PROSPERO database, CRD42018007271. FINDINGS We identified 6777 studies, of which 5377 were excluded before full-text review. 122 studies providing estimates for 130 distinct populations matched the inclusion criteria. The populations comprised 417 006 people living with HIV (women, men who have sex with men, and men who have sex with women). 41 (32%) population estimates were not stratified by sex or sexual orientation. People living with HIV receiving ART had 35% lower high-risk HPV prevalence than ART-naive people (crude odds ratio [OR] 0·65, 95% CI 0·54-0·79; I2 12·1%, p=0·31) in 18 studies, and prolonged ART use was associated with a 10% reduction per year in high-risk HPV prevalence in two studies (adjusted OR 0·90, 0·85-0·95; I2 0%, p=0·88). People living with HIV with undetectable PVL had lower HSIL-AIN2+ prevalence than those with detectable PVL (crude OR 0·84, 0·72-0·98; I2 0%, p=0·80) in 16 studies, particularly if sustained for more than 1 year (crude OR 0·62, 0·47-0·81; I2 0%, p=0·51). ART was not associated with anal cancer incidence when adjusted for years living with HIV in three studies (adjusted hazard ratio [HR] 1·11, 95% CI 0·68-1·80; I2 0%, p=0·57), but ART users with sustained undetectable HIV PVL had 44% lower risk of anal cancer than those without (adjusted HR 0·56, 0·44-0·70; I2 0%, p=0·94) and for each increase in nadir CD4 cell counts of 100 cells per μL, there was a 40% decrease in anal cancer incidence (crude HR 0·60, 0·46-0·78; I2 21·7%, p=0·26). INTERPRETATION Effective ART use and early initiation at high nadir CD4 counts might reduce anal high-risk HPV infection and anal cancer risk. Although most studies were cross-sectional in design and few adjusted for potential confounders, this analysis provides comprehensive estimates of the effect of ART and HIV-related factors on the natural history of anal HPV-related disease in people living with HIV. FUNDING EU Marie Skłodowska-Curie Actions programme.
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Affiliation(s)
- Helen Kelly
- Cancer Epidemiology Research Program, Catalan Institute of Oncology, Institut d'Investigació Biomèdica de Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain; Clinical Research Department, London School of Hygiene & Tropical Medicine, London, UK.
| | - Admire Chikandiwa
- Wits Reproductive Health and HIV Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Laia Alemany Vilches
- Cancer Epidemiology Research Program, Catalan Institute of Oncology, Institut d'Investigació Biomèdica de Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Joel M Palefsky
- Department of Infectious Diseases, School of Medicine, University of California, San Francisco, CA, USA
| | - Silvia de Sanjose
- Consorcio de Investigación Biomédica en Red de Epidemiología y Salud Pública, Barcelona, Spain; PATH, Seattle, WA, USA
| | - Philippe Mayaud
- Clinical Research Department, London School of Hygiene & Tropical Medicine, London, UK
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4
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Dias Gonçalves Lima F, Viset JD, Leeflang MMG, Limpens J, Prins JM, de Vries HJC. The Accuracy of Anal Swab-Based Tests to Detect High-Grade Anal Intraepithelial Neoplasia in HIV-Infected Patients: A Systematic Review and Meta-analysis. Open Forum Infect Dis 2019; 6:ofz191. [PMID: 31123696 PMCID: PMC6524827 DOI: 10.1093/ofid/ofz191] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 04/12/2019] [Indexed: 12/11/2022] Open
Abstract
Background The incidence of high-risk human papillomavirus (HR-HPV)–induced anal cancer is increasingly problematic among HIV-positive patients. Anal cancer is preceded by precursor lesions, anal intraepithelial neoplasia (AIN). AIN detection requires high-resolution anoscopy, a cumbersome and time-consuming procedure. We aggregated evidence on anal swab–based tests to detect AIN in HIV-positive patients. Methods We searched MEDLINE and EMBASE for cross-sectional studies on AIN detection with anal cytology, HR-HPV DNA detection, HPV E6/E7 mRNA analysis, and P16INK4a and Ki-67 immunostaining. Summary estimates of sensitivity and specificity were calculated using bivariate logistic regression. Cytology was reported using the terms squamous intra-epithelial lesion (SIL) for AIN and high-grade SIL (HSIL) for high-grade AIN (HGAIN). Results We included 22 studies. Using cytology with a cutoff of any SIL to detect HGAIN, we detected a sensitivity of 82% (95% CI, 74%–87%) and specificity of 45% (95% CI, 44%–66%); with the cutoff of HSIL, the sensitivity was 44% (95% CI, 45%–67%) and the specificity was 79% (95% CI, 69%-87%). The sensitivity of HPV DNA to detect HGAIN was 91% (95% CI, 82%–95%) and the specificity was 27% (95% CI, 21%–33%). For MSM, the positive predictive value (PPV) of cytology with a cutoff of any SIL was 36% (95% CI, 23%–50%) and the negative predictive value (NPV) was 87% (95% CI, 78%–93%), whereas cytology with a cutoff of HSIL had a PPV of 62% (95% CI, 50%–73%) and an NPV of 78% (95% CI, 65%–87%). The PPV of HR-HPV DNA detection was 37% (95% CI, 20%–57%) and the NPV was 87% (95% CI, 79%–93%). Conclusions Given its sensitivity, cytology with a cutoff of any SIL could be considered as a triaging method, whereas cytology with a cutoff of HSIL had better specificity and could be used for quality assurance. HR-HPV DNA detection had poor specificity and PPV, making it unsuitable for triage.
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Affiliation(s)
| | - Janine D Viset
- Department of Dermatology, Amsterdam Institute for Infection and Immunity (AI&II), Amsterdam, the Netherlands
| | - Mariska M G Leeflang
- Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Amsterdam Public Health Research Institute, Amsterdam, the Netherlands
| | - Jacqueline Limpens
- Medical Library, University of Amsterdam, Amsterdam UMC, Amsterdam, the Netherlands
| | - Jan M Prins
- Department of Internal Medicine, University of Amsterdam, Amsterdam UMC, Amsterdam, the Netherlands
| | - Henry J C de Vries
- Department of Dermatology, Amsterdam Institute for Infection and Immunity (AI&II), Amsterdam, the Netherlands.,STI Outpatient Clinic, Department of Infectious Diseases, Public Health Service of Amsterdam (GGD Amsterdam), Amsterdam, the Netherlands
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5
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Chen CC, Chou YY. Predictive value of the anal cytology for detecting anal intraepithelial neoplasia or worse: A systematic review and meta-analysis. Diagn Cytopathol 2019; 47:307-314. [PMID: 30605263 DOI: 10.1002/dc.24078] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 08/13/2018] [Accepted: 08/24/2018] [Indexed: 02/06/2023]
Affiliation(s)
- Cheng-Chieh Chen
- Department of Pathology and Laboratory Medicine; Shin Kong Wu Ho-Su Memorial Hospital; Taipei Taiwan, Republic of China
| | - Yuh-Yu Chou
- Department of Pathology and Laboratory Medicine; Shin Kong Wu Ho-Su Memorial Hospital; Taipei Taiwan, Republic of China
- Department of Pathology, School of Medicine; College of Medicine, Taipei Medical University; Taipei Taiwan, Republic of China
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Gonçalves JCN, Macedo ACL, Madeira K, Bavaresco DV, Dondossola ER, Grande AJ, da Rosa MI. Accuracy of Anal Cytology for Diagnostic of Precursor Lesions of Anal Cancer: Systematic Review and Meta-analysis. Dis Colon Rectum 2019; 62:112-120. [PMID: 30451747 DOI: 10.1097/dcr.0000000000001231] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND Anal canal carcinoma is relevant because it commonly occurs in high-risk groups, and its incidence has been increasing. OBJECTIVE This study evaluated the accuracy of anal cytology in the screening of precursor lesions of anal cancer, compared with histopathologic examination as the reference, in all subjects and in men who have sex with men, HIV-infected men and women, and men who have sex with men and HIV-infected subgroups. DATA SOURCES The data included studies identified in the MEDLINE, Latin American and Caribbean Health Sciences, Cochrane Library, and Embase electronic databases, as well as in the grey literature. The search terms included anal cancer, anal dysplasia, anal intraepithelial neoplasia, screening, and anal cytology. STUDY SELECTION After excluding studies with no histopathological data and those with duplicate and missing data, 34 primary studies were included. INTERVENTION Cytology of anal smears was studied. MAIN OUTCOME MEASURES Sensitivity, specificity, diagnostic OR, and area under the curve were measured. RESULTS A total of 5093 patients were included. The pooled sensitivity of anal cytology was 85.0% (95% CI, 82.0%-87.0%) and pooled specificity was 43.2% (95% CI, 41.4%-45.1%) for the detection of anal intraepithelial neoplasia grade 2 or worse versus anal intraepithelial neoplasia grade 1 and normal when measuring all subjects. The accuracy of anal cytology was higher in the men who have sex with men and HIV-infected and men who have sex with men only subgroups. LIMITATIONS This study was limited by its specificity. CONCLUSIONS The study results support the hypothesis that cytology is a good test for the screening of anal cancer.
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Affiliation(s)
- João Carlos N Gonçalves
- Translational Biomedicine Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina, Criciúma, Santa Catarina, Brazil
- Department of Medicine, Centro Universitário do Espírito Santo, University of Southern Santa Catarina, Colatina, Espírito Santo, Brazil
| | - Ana C L Macedo
- Translational Biomedicine Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina, Criciúma, Santa Catarina, Brazil
- Department of Medicine, Centro Universitário do Espírito Santo, University of Southern Santa Catarina, Colatina, Espírito Santo, Brazil
| | - Kristian Madeira
- Translational Biomedicine Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina, Criciúma, Santa Catarina, Brazil
| | - Daniela Vicente Bavaresco
- Translational Biomedicine Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina, Criciúma, Santa Catarina, Brazil
| | - Eduardo Ronconi Dondossola
- Translational Biomedicine Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina, Criciúma, Santa Catarina, Brazil
| | - Antônio José Grande
- Laboratory of Evidence in Health, Medicine and Health Sciences, University of State of Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | - Maria Inês da Rosa
- Translational Biomedicine Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina, Criciúma, Santa Catarina, Brazil
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Esser S, Kreuter A, Oette M, Gingelmaier A, Mosthaf F, Sautter-Bihl ML, Jongen J, Brockmeyer NH, Eldering G, Swoboda J, Postel N, Degen O, Schalk H, Jessen A, Knechten H, Thoden J, Stellbrink HJ, Schafberger A, Wieland U. German-Austrian guidelines on anal dysplasia and anal cancer in HIV-positive individuals: prevention, diagnosis, and treatment. J Dtsch Dermatol Ges 2016; 13:1302-19. [PMID: 26612810 DOI: 10.1111/ddg.12726] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Stefan Esser
- University Hospital Essen, HPSTD Outpatient Clinic, Department of Dermatology and Venereology, Essen, Germany
| | - Alexander Kreuter
- HELIOS St. Elisabeth Hospital Oberhausen, Department of Dermatology, Venereology, and Allergology, Oberhausen, Germany
| | - Mark Oette
- Augustinerinnen Hospital, Department of General Medicine, Gastroenterology; and Infectious Diseases, Cologne, Germany
| | - Andrea Gingelmaier
- Ludwig-Maximilians-University, University Hospital Munich, Department of Gynecology, Munich, Germany
| | - Franz Mosthaf
- Medical Specialist Practice for Hematology, Oncology, and Infectious Diseases, Karlsruhe, Germany
| | | | | | - Norbert H Brockmeyer
- Ruhr-University, St. Josef Hospital, Department of Dermatology, Venereology, and Allergology, Center for Sexual Health und Medicine, Bochum, Germany
| | | | | | | | - Olaf Degen
- University Hospital Hamburg-Eppendorf, Outpatient Clinic Center for Infectious Diseases, Hamburg, Germany
| | - Horst Schalk
- Medical Practice Center of General Medicine, Vienna, Austria
| | | | - Heribert Knechten
- Medical Practice for Internal Medicine and Infectious Diseases, Aachen, Germany
| | - Jan Thoden
- Medical Group Practice for Internal Medicine and Rheumatology, Freiburg, Germany
| | | | | | - Ulrike Wieland
- University Köln, Institute of Virology, National Reference Center for Papilloma and Polyomavirus, Cologne, Germany
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Ruanpeng D, Chariyalertsak S, Kaewpoowat Q, Supindham T, Settakorn J, Sukpan K, Utaipat U, Miura T, Kosashunhanan N, Saokhieo P, Songsupa R, Wongthanee A. Cytological Anal Squamous Intraepithelial Lesions Associated with Anal High-Risk Human Papillomavirus Infections among Men Who Have Sex with Men in Northern Thailand. PLoS One 2016; 11:e0156280. [PMID: 27227684 PMCID: PMC4882004 DOI: 10.1371/journal.pone.0156280] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Accepted: 05/11/2016] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Anal cancer, one of human papillomavirus (HPV) related malignancies, has increased in recent decades, particularly among men who have sex with men (MSM) and HIV-infected (HIV+) persons. We aimed to explore the prevalence of anal squamous intraepithelial lesions (ASIL) using Papanicolau (Pap) screening among MSM in northern Thailand and its associated factors. METHODS Two hundreds MSM aged ≥18 years reporting receptive anal intercourse in the prior 6 months were recruited from July 2012 through January 2013. Medical history and behavioral data were collected by staff interview and computer-assisted self interview. Anal Pap smear, HPV genotyping, and HIV testing were performed. Two pathologists blinded to HPV and HIV status reported cytologic results by Bethesda classification. RESULTS Mean age was 27.2 years (range 18-54). Overall, 86 (43.0%) had ASIL: 28 (14.2%) with atypical cells of undetermined significance (ASCUS), 1 (0.5%) with atypical squamous cells-cannot exclude high-grade squamous intraepithelial lesion (ASC-H), 56 (28.4%) with low-grade squamous intraepithelial lesion (LSIL), and 1 (0.5%) with high-grade squamous intraepithelial lesion (HSIL). ASIL was associated by univariate analysis (p ≤0.05) with older age, gender identity other than bisexual (i.e., gay men and transgender women), rectal douching, anal symptoms, genital warts, HIV positivity, and high-risk-HPV infection. However, on multiple logistic regression ASIL was associated only with high-risk HPV type (p = 0.002) and HIV infection (p = 0.01). CONCLUSIONS ASIL is quite common in high-risk MSM in northern Thailand and is associated with high-risk HPV types and HIV infection. Routine anal Pap screening should be considered, given the high frequency of ASIL, particularly in the HIV+. High resolution anoscopy (HRA), not done here, should be to confirm PAP smears whose sensitivity and specificity are quite variable. Timely HPV vaccination should be considered for this population.
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Affiliation(s)
- Darin Ruanpeng
- Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Suwat Chariyalertsak
- Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand
- * E-mail:
| | - Quanhathai Kaewpoowat
- Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand
- Division of Infectious Diseases, Department of Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Taweewat Supindham
- Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Jongkolnee Settakorn
- Department of Pathology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Kornkanok Sukpan
- Department of Pathology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Utaiwan Utaipat
- Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Toshiyuki Miura
- Department of Clinical Medicine, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | | | - Pongpun Saokhieo
- Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Radchanok Songsupa
- Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Antika Wongthanee
- Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand
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Panichsillapakit T, Patel D, Santangelo J, Richman DD, Little SJ, Smith DM. Colorectal Disorders in Acute Human Immunodeficiency Virus Infection: A Case Series. Open Forum Infect Dis 2016; 3:ofw014. [PMID: 26925432 PMCID: PMC4766383 DOI: 10.1093/ofid/ofw014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Accepted: 01/22/2016] [Indexed: 01/19/2023] Open
Abstract
Background. The gastrointestinal (GI) tract is important in the pathogenesis of human immunodeficiency virus (HIV) infection. We report a case series of lower GI endoscopic and histopathologic findings of HIV-infected individuals after presentation with acute infection. Methods. We performed a retrospective case review of individuals infected with HIV who enrolled between August 2010 and April 2013 in a primary infection treatment trial. All participants started the trial during acute infection and underwent colonoscopy with biopsies at baseline and after the start of antiretroviral treatment. Results. Twenty acutely infected individuals were included in the study (mean age, 33 years; range, 20-54 years). All participants were male who reported having receptive anal sex as an HIV risk factor. Nine individuals (45%) had at least 1 finding by colorectal pathology; 1 person had 2 diagnoses (diverticulosis and focal active proctitis). The histopathological findings revealed anal dysplasia in 3 cases: 2 had high-grade anal intraepithelial neoplasia (AIN) and 1 had low-grade AIN. Two persons had a colorectal polyp, 1 hyperplastic and 1 adenomatous. Three persons were diagnosed with diverticulosis, and 2 persons were diagnosed with proctitis, including 1 with focal active proctitis and 1 with cytomegalovirus proctitis. Conclusions. To our knowledge, this is the first case series report of lower GI disorders in acute HIV-infected individuals. Although the causal relationship remains uncertain, we describe the endoscopic findings that were observed during acute HIV infection among men who have sex with men. Understanding the prevalence of these pathologies may likely shed light on how acute HIV infection damages the lower GI tract.
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Affiliation(s)
- Theppharit Panichsillapakit
- Department of Preventive and Social Medicine, Faculty of Medicine Siriraj Hospital , Mahidol University , Bangkok , Thailand
| | | | - Joanne Santangelo
- Department of Preventive and Social Medicine, Faculty of Medicine Siriraj Hospital , Mahidol University , Bangkok , Thailand
| | - Douglas D Richman
- Departments of Medicine; Pathology, University of California, San Diego; Veterans Affairs San Diego Healthcare System, California, La Jolla
| | | | - Davey M Smith
- Departments of Medicine; Veterans Affairs San Diego Healthcare System, California, La Jolla
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10
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Long KC, Menon R, Bastawrous A, Billingham R. Screening, Surveillance, and Treatment of Anal Intraepithelial Neoplasia. Clin Colon Rectal Surg 2016; 29:57-64. [PMID: 26929753 DOI: 10.1055/s-0035-1570394] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The prevalence of anal intraepithelial neoplasia has been increasing, especially in high-risk patients, including men who have sex with men, human immunodeficiency virus positive patients, and those who are immunosuppressed. Several studies with long-term follow-up have suggested that rate of progression from high-grade squamous intraepithelial lesions to invasive anal cancer is ∼ 5%. This number is considerably higher for those at high risk. Anal cytology has been used to attempt to screen high-risk patients for disease; however, it has been shown to have very little correlation to actual histology. Patients with lesions should undergo history and physical exam including digital rectal exam and standard anoscopy. High-resolution anoscopy can be considered as well, although it is of questionable time and cost-effectiveness. Nonoperative treatments include expectant surveillance and topical imiquimod or 5-fluorouracil. Operative therapies include wide local excision and targeted ablation with electrocautery, infrared coagulation, or cryotherapy. Recurrence rates remain high regardless of treatment delivered and surveillance is paramount, although optimal surveillance regimens have yet to be established.
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Affiliation(s)
- Kevin C Long
- Swedish Colon and Rectal Clinic, Swedish Medical Center Department of Surgery, Seattle, Washington
| | - Raman Menon
- Swedish Colon and Rectal Clinic, Swedish Medical Center Department of Surgery, Seattle, Washington
| | - Amir Bastawrous
- Swedish Colon and Rectal Clinic, Swedish Medical Center Department of Surgery, Seattle, Washington
| | - Richard Billingham
- Swedish Colon and Rectal Clinic, Swedish Medical Center Department of Surgery, Seattle, Washington
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11
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Esser S, Kreuter A, Oette M, Gingelmaier A, Mosthaf F, Sautter-Bihl ML, Jongen J, Brockmeyer NH, Eldering G, Swoboda J, Postel N, Degen O, Schalk H, Jessen A, Knechten H, Thoden J, Stellbrink HJ, Schafberger A, Wieland U. Deutsch-Österreichische S2k-Leitlinie: anale Dysplasien und Analkarzinome bei HIV-Infizierten: Prävention, Diagnostik und Therapie. J Dtsch Dermatol Ges 2015. [DOI: 10.1111/ddg.60_12726] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Stefan Esser
- Universitätsklinikum Essen, HPSTD-Ambulanz; Klinik für Dermatologie und Venerologie; Essen Deutschland
| | - Alexander Kreuter
- HELIOS St. Elisabeth Klinik Oberhausen; Klinik für Dermatologie, Venerologie und Allergologie; Oberhausen Deutschland
| | - Mark Oette
- Augustinerinnen Hospital, Klinik für Allgemeinmedizin; Gastroenterologie und Infektiologie; Köln Deutschland
| | - Andrea Gingelmaier
- Ludwig-Maximilians-Universität, Universitätsklinikum München; Klinik für Gynäkologie; München Deutschland
| | - Franz Mosthaf
- Facharztpraxis für Hämatologie; Onkologie und Infektiologie; Karlsruhe Deutschland
| | - Marie-Luise Sautter-Bihl
- Städtische Klinikum Karlsruhe; Klinik für Radioonkologie und Strahlentherapie; Karlsruhe Deutschland
| | | | - Norbert H. Brockmeyer
- Ruhr-Universität, St. Josef Krankenhaus, Klinik für Dermatologie; Venerologie und Allergologie, Zentrum für sexuelle Gesundheit und Medizin; Bochum Deutschland
| | | | | | | | - Olaf Degen
- Universitätsklinikum Hamburg-Eppendorf; Ambulanzzentrum Bereich Infektiologie; Hamburg Deutschland
| | - Horst Schalk
- Gruppenpraxis für Allgemeinmedizin; Wien Österreich
| | | | | | - Jan Thoden
- Gemeinschaftspraxis für Innere Medizin und Rheumatologie; Freiburg Deutschland
| | | | | | - Ulrike Wieland
- Universität Köln, Institut für Virologie; Nationales Referenzzentrum für Papillom- und Polyomaviren; Köln Deutschland
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Hughes G, Field N. The epidemiology of sexually transmitted infections in the UK: impact of behavior, services and interventions. Future Microbiol 2015; 10:35-51. [PMID: 25598336 DOI: 10.2217/fmb.14.110] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Sexually transmitted infections (STIs) are a major public health concern. The UK has some of the most advanced STI surveillance systems globally. This article uses national surveillance data to describe remarkable changes in STI epidemiology in the UK over the last century and explores the behavioral and demographic shifts that may explain these trends. The past 10 years have seen considerable improvements in STI service provision and the introduction of national public health interventions. However, sexual health inequalities persist and men who have sex with men, young adults and black ethnic minorities remain a priority for interventions. Technological advances in testing and a shift in sexual health service commissioning arrangements will present both opportunities and challenges in future.
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Affiliation(s)
- Gwenda Hughes
- Department of HIV & STIs, Centre for Infectious Disease Surveillance & Control, Public Health England, 61 Colindale Avenue, London, NW9 5EQ, UK
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13
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Abstract
The natural history of human papillomavirus (HPV) is not yet completely understood. But over the past decade, there has been an explosion in knowledge about the virus and its relationship to precancerous and cancerous changes in the genital tract. Recent research in the management of Pap testing, new technologies for Pap screening, and easy access to HPV tests have changed the treatment recommendations in patients with abnormal cytologic results. In this article, Dr Buechler explores these advances and explains how they affect the clinical management of patients with abnormal Pap test results.
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King EM, Gilson R, Beddows S, Soldan K, Panwar K, Young C, Prah P, Jit M, Edmunds WJ, Sonnenberg P. Human papillomavirus DNA in men who have sex with men: type-specific prevalence, risk factors and implications for vaccination strategies. Br J Cancer 2015; 112:1585-93. [PMID: 25791874 PMCID: PMC4453685 DOI: 10.1038/bjc.2015.90] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 02/02/2015] [Accepted: 02/07/2015] [Indexed: 11/09/2022] Open
Abstract
Background: Human papillomavirus (HPV) vaccination of girls will have relatively little effect on HPV-related disease in men who have sex with men (MSM). We determined HPV prevalence and risk factors in MSM to inform the potential effectiveness of vaccinating MSM. Methods: Cross-sectional study of 522 MSM aged 18–40 attending a London sexual health clinic who completed a computer-assisted self-interview. Urine and two swabs (anal and penile/scrotal/perianal) were collected and tested using an in-house Luminex-based HPV genotyping system. Results: Prevalence of DNA of the vaccine-preventable HPV types in ano-genital specimens of men was 87/511 (17.0%), 166/511 (32.5%) and 232/511 (45.4%) for the bivalent (HPV16/18), quadrivalent (HPV6/11/16/18) and nonavalent (HPV6/11/16/18/31/33/45/52/58) vaccine types, respectively. A total of 25.1% had one of the quadrivalent types, and 7.4% had 2+ types. Median age at first anal sex was 19 (IQR 17–23) and at first clinic attendance was 24 (IQR 20–27). The increase in the odds of any HPV infection per year of age was 4.7% (95% CI 1.2–8.4). Conclusions: On the basis of the current infection status, most MSM, even among a high-risk population attending a sexual health clinic, are not currently infected with the vaccine-type HPV. A targeted vaccination strategy for MSM in the UK could have substantial benefits.
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Affiliation(s)
- E M King
- Research Department of Infection and Population Health, University College London, London WC1E 6JB, UK
| | - R Gilson
- 1] Research Department of Infection and Population Health, University College London, London WC1E 6JB, UK [2] The Mortimer Market Centre, Central and North West London NHS Foundation Trust, London WC1E 6JB, UK
| | - S Beddows
- Virus Reference Department, Public Health England, 61 Colindale Avenue, London NW9 5EQ, UK
| | - K Soldan
- HIV/STI Department, Centre for Communicable Disease Surveillance and Control (CIDSC), Public Health England, 61 Colindale Avenue London, NW9 5EQ, UK
| | - K Panwar
- Virus Reference Department, Public Health England, 61 Colindale Avenue, London NW9 5EQ, UK
| | - C Young
- 1] Research Department of Infection and Population Health, University College London, London WC1E 6JB, UK [2] The Mortimer Market Centre, Central and North West London NHS Foundation Trust, London WC1E 6JB, UK
| | - P Prah
- Research Department of Infection and Population Health, University College London, London WC1E 6JB, UK
| | - M Jit
- 1] Modelling and Economics Unit, Public Health England, 61 Colindale Avenue, London NW9 5EQ, UK [2] Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, Keppel Street, London WC1E 7HT, UK
| | - W J Edmunds
- Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, Keppel Street, London WC1E 7HT, UK
| | - P Sonnenberg
- Research Department of Infection and Population Health, University College London, London WC1E 6JB, UK
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Barroso LF. The role of Human Papilloma Virus (HPV) vaccination in the prevention of anal cancer in individuals with Human Immunodeficiency Virus-1 (HIV-1) infection. THERAPEUTIC ADVANCES IN VACCINES 2014; 1:81-92. [PMID: 24757517 DOI: 10.1177/2051013613496946] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The incidence of anal cancer is increasing in the general population and especially in high-risk groups. A total of 90% of anal cancers are caused by human papilloma virus (HPV) infection of the anal canal. Similar to cervical cancer, anal cancer progresses through a predictable series of premalignant stages before resulting in invasive cancer; this process begins with persistent HPV infection. The HPV vaccine represents a promising strategy to combat the increasing incidence of anal cancer. Human Immunodeficiency Virus (HIV) predisposes people to persistent HPV infection, dysplasia, and subsequent anal cancer. Patients infected with HIV should be targeted for vaccination against HPV. There are difficulties in targeting this population, the most notable being that the optimal age for vaccination is prior to identification with any high-risk groups. Universal vaccination against HPV represents the best strategy to achieve maximum protection against anal cancer in high-risk groups.
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Affiliation(s)
- Luis F Barroso
- Wake Forest Baptist Health, Internal Medicine/Infectious Diseases, 1 Medical Center Blvd, Winston-Salem, NC 27157, USA
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Walts AE, Manna P, Chan RCK, Kerley S, Bose S. Does high-risk human papilloma virus genotyping of abnormal anal cytology improve detection of high-grade anal intraepithelial neoplasia? J Am Soc Cytopathol 2014; 3:236-243. [PMID: 31051676 DOI: 10.1016/j.jasc.2014.03.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2013] [Revised: 03/31/2014] [Accepted: 03/31/2014] [Indexed: 10/25/2022]
Abstract
INTRODUCTION High-risk (HR) human papillomavirus (HPV) testing is accepted as the standard of care for surveillance of cervical cancer. Its role in anal cancer is not clear. This study was therefore designed to determine if HR HPV genotyping is a useful adjunct in management of abnormal anal Papanicolaou (Pap) tests. MATERIALS AND METHODS HR HPV genotyping and virus quantification was performed on 101 residual anal Pap test samples (28 negative, 25 atypical squamous cells of undetermined significance [ASC], 34 low-grade squamous intraepithelial lesion [LSIL], 6 atypical squamous cells of undetermined significance, cannot exclude high-grade squamous intraepithelial lesion, and 8 high-grade squamous intraepithelial lesion) using multiplex real-time polymerase chain reaction. Results were correlated with cytodiagnosis and follow-up. RESULTS HR HPV was detected in 82% (50% negative, 84% ASC, and 100% LSIL and above) cases. Multiple genotypes were present in 71% of cases. Genotype number and viral load correlated with the degree of anal cytologic abnormality. HPV 16, 18, and 45 were the most frequent genotypes detected. The high frequency of HR HPV in abnormal anal cytologies limits its use as an adjunct test. Anal Pap test samples with anal intraepithelial neoplasia 2/3 (AIN 2/3) on follow-up were positive for HPV 16 and/or 18 (HPV 16/18+) in 80% of cases. We hypothesize that testing for HPV 16/18 on the ASC and LSIL cases would have detected AIN 2/3 with a sensitivity of 81%, specificity of 43%, positive predictive value of 39%, and negative predictive value of 83%. CONCLUSIONS Our results with a small cohort suggest that genotyping for HPV 16/18 may be effective in identifying patients at high risk for anal cancer and in reducing the number of anoscopy referrals. Prospective studies with follow-up are warranted.
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Affiliation(s)
- Ann E Walts
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, 8700 Beverly Boulevard, Los Angeles, California.
| | - Pradip Manna
- Molecular Pathology, Physicians Reference Laboratory, Overland Park, Kansas
| | - Raymond C-K Chan
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, 8700 Beverly Boulevard, Los Angeles, California
| | - Spencer Kerley
- Molecular Pathology, Physicians Reference Laboratory, Overland Park, Kansas
| | - Shikha Bose
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, 8700 Beverly Boulevard, Los Angeles, California
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García-Espinosa B, Moro-Rodríguez E, Álvarez-Fernández E. Human papillomavirus genotypes in human immunodeficiency virus-positive patients with anal pathology in Madrid, Spain. Diagn Pathol 2013; 8:204. [PMID: 24325764 PMCID: PMC3937168 DOI: 10.1186/1746-1596-8-204] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Accepted: 12/03/2013] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND We studied anal specimens to determine the distribution of human papillomavirus (HPV) genotypes and co-infection occurrence. This information will contribute to the knowledge of HPV genotype distributions and provide an estimate of the prevalence of different oncogenic HPV genotypes found in patients in Madrid (Spain). METHODS We studied a total of 82 anal biopsies from the Hospital General Universitario Gregorio Marañón of Madrid. These included 4 specimens with benign lesions, 52 specimens with low-grade anal squamous intraepithelial lesion, 24 specimens with high-grade anal squamous intraepithelial lesions and 2 specimens with invasive anal carcinoma. HPV genotyping was performed with PCR amplification and reverse dot blot hybridization. RESULTS We detected 33 different HPV genotypes, including 16 HPVs associated with a high risk of carcinogenesis, 3 HPVs associated with a highly likely risk of carcinogenesis and 14 HPVs associated with a low-risk of carcinogenesis. In two specimens, an uncharacterized HPV genotype was detected. The most frequent HPV genotypes found were HPV-16 (10.3%; 95% CI: 6.6%-15.1%), HPV-52 (8.5%; 95% CI: 5.2%-13%) and HPV-43/44 (7.6%; 95% CI: 4.5%-11.9%). HPV-18 was only detected in 0.9% (95% CI: 0.1%-3.2%) of the total viruses detected in all lesions. HPV co-infections were found in 83.9% of all types of lesions. The majority of cases (90.2%) were concomitantly infected with the human immunodeficiency virus (HIV). CONCLUSION The prevalence of high-risk carcinogenic genotypes in anal pathological samples was remarkable. Therefore, further studies that include a greater number of samples, particularly invasive carcinoma cases are needed to evaluate the potential influence of these HPV genotypes in the appearance of anal carcinomas. Also, the influence of other accompanying infections should be evaluated clarify the appearance of this type of carcinoma. VIRTUAL SLIDES The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/2075238024106058.
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Affiliation(s)
- Benjamín García-Espinosa
- Department of Histology and Anatomical Pathology, Rey Juan Carlos University, School of Medicine, Madrid, Spain
| | - Ernesto Moro-Rodríguez
- Department of Histology and Anatomical Pathology, Rey Juan Carlos University, School of Medicine, Madrid, Spain
- Universidad Rey Juan Carlos, Av de Atenas s/n, E28922, Alcorcón, Madrid, Spain
| | - Emilio Álvarez-Fernández
- Department of Anatomical Pathology and Laboratories, Hospital General Universitario “Gregorio Marañón”, Madrid, Spain
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Abstract
Diagnosis, follow up, and treatment of anal intraepithelial neoplasia are complex and not standardized. This may be partly caused by poor communication of biopsy and cytology findings between pathologists and clinicians as a result of a disparate and confusing terminology used to classify these lesions. This article focuses on general aspects of epidemiology and on clarifying the current terminology of intraepithelial squamous neoplasia, its relationship with human papilloma virus infection, and the current methods that exist to diagnose and treat this condition.
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Coutlée F, de Pokomandy A, Franco EL. Epidemiology, natural history and risk factors for anal intraepithelial neoplasia. Sex Health 2013; 9:547-55. [PMID: 22954036 DOI: 10.1071/sh11167] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2011] [Accepted: 02/07/2012] [Indexed: 01/02/2023]
Abstract
Studies conducted in HIV-seropositive individuals have enhanced our understanding of the natural history of anal intraepithelial neoplasia (AIN) and of factors predictive of progression to high-grade AIN, the immediate precursor to anal cancer. AIN is frequently detected in HIV-seropositive individuals. Factors that increase the risk for AIN include HIV infection, low current or nadir blood CD4+ cell counts, receptive anal intercourse, oncogenic human papillomavirus (HPV) infection, persistent anal HPV infection, multiple HPV type infections and high anal HPV viral load. This review confirms the importance of high-grade AIN in HIV-seropositive individuals and HIV-seronegative men having sex with men.
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Affiliation(s)
- François Coutlée
- Départements de Microbiologie et Infectiologie, Centre Hospitalier de l'Université de Montréal, Montreal, Quebec, Canada.
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Human papillomavirus oncogene mRNA testing for the detection of anal dysplasia in HIV-positive men who have sex with men. J Clin Virol 2012; 53:325-31. [DOI: 10.1016/j.jcv.2011.12.029] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2011] [Revised: 12/22/2011] [Accepted: 12/23/2011] [Indexed: 01/17/2023]
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Anal human papillomavirus infection and associated neoplastic lesions in men who have sex with men: a systematic review and meta-analysis. Lancet Oncol 2012; 13:487-500. [PMID: 22445259 DOI: 10.1016/s1470-2045(12)70080-3] [Citation(s) in RCA: 677] [Impact Index Per Article: 56.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Men who have sex with men (MSM) are at greatly increased risk of human papillomavirus (HPV)-associated anal cancer. Screening for the presumed cancer precursor, high-grade anal intraepithelial neoplasia (AIN), followed by treatment in a manner analogous to cervical screening, has been proposed. We aimed to assess available data for anal HPV disease that can inform pre-cancer screening programmes. METHODS We searched PubMed, OVID Medline, and Embase for all studies published before Nov 1, 2011, that reported prevalence and incidence of anal HPV detection, AIN, and anal cancer in MSM. We calculated summary estimates using random-effects meta-analysis. FINDINGS 53 studies met the inclusion criteria, including 31 estimates of HPV prevalence, 19 estimates of cytological abnormalities, eight estimates of histological abnormalities, and nine estimates of anal cancer incidence. Data for incident HPV and high-grade AIN were scarce. In HIV-positive men, the pooled prevalence of anal HPV-16 was 35·4% (95% CI 32·9-37·9). In the only published estimate, incidence of anal HPV-16 was 13·0% (9·6-17·6), and clearance occurred in 14·6% (10·2-21·2) of men per year. The pooled prevalence of histological high-grade AIN was 29·1% (22·8-35·4) with incidences of 8·5% (6·9-10·4) and 15·4% (11·8-19·8) per year in two estimates. The pooled anal cancer incidence was 45·9 per 100,000 men (31·2-60·3). In HIV-negative men, the pooled prevalence of anal HPV-16 was 12·5% (9·8-15·4). Incidence of HPV-16 was 11·8% (9·2-14·9) and 5·8% (1·9-13·5) of men per year in two estimates. The pooled prevalence of histological high-grade AIN was 21·5% (13·7-29·3), with incidence of 3·3% (2·2-4·7) and 6·0% (4·2-8·1) per year in two estimates. Anal cancer incidence was 5·1 per 100,000 men (0-11·5; based on two estimates). There were no published estimates of high-grade AIN regression. INTERPRETATION Anal HPV and anal cancer precursors were very common in MSM. However, on the basis of restricted data, rates of progression to cancer seem to be substantially lower than they are for cervical pre-cancerous lesions. Large, good-quality prospective studies are needed to inform the development of anal cancer screening guidelines for MSM. FUNDING Australian Government Department of Health and Ageing.
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Silva ITCE, Araújo JR, Andrade RV, Cabral CRB, Gimenez FS, Guimarães AGDP, Santos PR, Rojas LCA, Ferreira LCL. Variabilidade interobservadores no diagnóstico de lesões precursoras do câncer anal: estudo do cenário habitual. Rev Col Bras Cir 2011. [DOI: 10.1590/s0100-69912011000600002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
OBJETIVO: Analisar a variabilidade interobservadores no diagnóstico de lesões precursoras do câncer anal no cenário mais comum de um serviço constituído por patologistas sem experiência prévia no diagnóstico destas lesões. MÉTODOS: Quinhentas e duas lâminas histopatológicas com espécimes anais retirados de 372 pacientes HIV-positivos e HIV-negativos foram analisadas no Departamento de Patologia da Fundação de Medicina Tropical do Amazonas por três patologistas com ampla experiência no diagnóstico de doenças tropicais e infecciosas, mas sem experiência prévia importante no diagnóstico de lesões precursoras do câncer anal. As leituras individuais de cada patologista foram comparadas com a que se seguiu a diagnóstico de consenso em microscópio de ótica compartilhada. Os diagnósticos individuais foram confrontados com os de consenso mediante análise da estatística kappa. RESULTADOS: A concordância absoluta entre cada diagnóstico individual e o de consenso correspondente foi ruim (kappa=-0,002). Considerando os resultados apenas positivos ou negativos para lesões intraepiteliais escamosas anais, obteve-se concordância regular entre os observadores (kappa=0,35), enquanto que a concordância foi moderada quando os resultados histopatológicos foram considerados positivos ou negativos para lesão intraepitelial de alto grau ou câncer (kappa=0,52). CONCLUSÃO: A variabilidade interobservadores no diagnóstico histopatológico do câncer anal e de suas lesões precursoras entre patologistas sem grande experiência na área, apesar de experts em outras, é tal que os diagnósticos neste campo e neste cenário comum devem sempre ser de consenso.
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Cervical Human Papillomavirus in transplanted Italian women: A long-term prospective follow-up study. J Clin Virol 2011; 51:250-4. [DOI: 10.1016/j.jcv.2011.05.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2011] [Revised: 05/03/2011] [Accepted: 05/07/2011] [Indexed: 11/22/2022]
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Tinmouth J, Raboud J, Ali M, Malloch L, Su D, Sano M, Lytwyn A, Rourke SB, Rabeneck L, Salit I. The psychological impact of being screened for anal cancer in HIV-infected men who have sex with men. Dis Colon Rectum 2011; 54:352-9. [PMID: 21304309 DOI: 10.1007/dcr.0b013e31820349c1] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Anal cancer screening may be considered in HIV-infected men who have sex with men because they are at increased risk. Cancer screening can provoke anxiety, which may lead to poorer screening compliance. OBJECTIVE This study aimed to measure the psychological consequences of anal cancer screening in HIV-infected men who have sex with men. DESIGN This investigation is a prospective cohort study. SETTING This study was conducted in primary and tertiary care HIV clinics in Toronto, Canada. PATIENTS One hundred four HIV-infected men who have sex with men were studied. MAIN OUTCOME MEASURES : Psychological impact was measured at 4 time points (before screening, after screening, after receiving results, and before follow-up) using the Impact of Events Scale, the Illness Intrusiveness Ratings Scale, and the Psychological Consequences Questionnaire. RESULTS Median age was 44, 77% were receiving antiretroviral therapy, and 11% had high-grade anal dysplasia (anal intraepithelial neoplasia 2/3). Fifteen to 32% of the patients reported high levels of negative psychological consequences across the 4 time points; the highest levels occurred at time 2. Higher HIV symptom count and baseline level of negative impact were significantly associated with higher Impact of Events scores, whereas younger age and a higher baseline level of negative impact were significantly associated with higher scores with use of the Illness Intrusiveness Ratings Scale. CONCLUSIONS Anal cancer screening is not associated with greater adverse psychological impact in most HIV-infected men who have sex with men. Younger patients, those with more HIV-related symptoms and greater baseline psychological distress, are at risk for increased psychological distress during screening.
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Affiliation(s)
- Jill Tinmouth
- Department of Medicine, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.
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Anal-rectal cytology: correlation with human papillomavirus status and biopsy diagnoses in a population of HIV-positive patients. J Low Genit Tract Dis 2010; 14:90-6. [PMID: 20354415 DOI: 10.1097/lgt.0b013e3181ba9bcd] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES We describe the cytological distribution of disease, correlate cytological diagnoses with human papillomavirus (HPV) DNA status and surgical biopsy diagnoses, determine if CD4 counts correlate with lesion severity, and compare anal-rectal data of HIV-infected patients (primarily men) with cervical data. MATERIALS AND METHODS A retrospective search of the computerized database identified 118 HIV-positive patients who had anal-rectal cytology. Cytology results were compared with available follow-up data including repeat anal-rectal cytology tests, surgical biopsy, CD4 counts, and HPV DNA polymerase chain reaction-based genotyping. RESULTS Cytological diagnoses included 3% unsatisfactory for diagnosis, 41% negative for intraepithelial lesion or malignancy (NILM), 23% atypical squamous cells of undermined significance (ASC-US), 31% low-grade squamous intraepithelial lesion (LSIL), and 2% high-grade squamous intraepithelial lesion (HSIL) (ASC-US/squamous intraepithelial lesion, 0.7:1). Two anal intraepithelial neoplasia (AIN) II, 10 AIN III, and 1 invasive squamous cell carcinoma were histologically detected (11%). The majority of AIN II was preceded by LSIL, 54%; ASC-US, 15%; and HSIL, 8%. The false-negative fraction was 23%. Sensitivity, specificity, negative predictive value, and positive predictive value were 92%, 8%, 33%, and 67%, respectively. Of those HPV tested concurrent with the first cytology specimen, 48% NILM, 78% ASC-US, and 100% LSIL were HPV positive. Mean CD4 counts (per microliter) were lower in patients with HSIL (243 [SD, 65]) compared with LSIL (400 [SD, 261]) and NILM (428 [SD, 232]). CONCLUSIONS Anal-rectal cytology is a useful screening test. A high percentage of AIN II lesions were detected in this at-risk population, and the majority was detected following cytological abnormality.
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Wong AK, Chan RC, Aggarwal N, Singh MK, Nichols WS, Bose S. Human papillomavirus genotypes in anal intraepithelial neoplasia and anal carcinoma as detected in tissue biopsies. Mod Pathol 2010; 23:144-50. [PMID: 19838162 DOI: 10.1038/modpathol.2009.143] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Human papillomavirus (HPV) infection strongly correlates with the development of anal intraepithelial neoplasias and carcinomas; however, few studies have characterized the distribution of the specific subtypes of the virus in the varying grades of dysplasia. This report characterizes the distribution of HPV 16/18 in surgical specimens with anal intraepithelial neoplasia (AIN) I-III and histological variants of anal carcinoma. A total of 111 anal surgical specimens with no dysplasia (10), AIN I-III (53), and anal carcinomas (48) were evaluated for the presence of high-risk HPV infection and subtyped by nested PCR or the Invader Assay. High-risk virus types were detected in progressively greater number of anal intraepithelial lesions from 56% in low grade to 88% in high grade. Type 16 was the prevalent subtype and was noted in 28% of low grade and 68% of high-grade lesions. Moderate dysplasias showed type 16 in 20%, a prevalence similar to that in low-grade lesions. The non-16/18 subtypes of the virus predominated and were present in 50% of the cases. Most (89%) squamous carcinomas were associated with high-risk viruses, 68% with type 16, a prevalence similar to that noted in high-grade dysplasia. Non-16/18 subtypes were encountered more frequently in squamous carcinomas from immunodeficient individuals (57% cases) as compared with immunocompetent individuals (18% cases). The similarity in the prevalence of type 16 in high-grade dysplasia and squamous carcinomas suggests that anal intraepithelial lesion III is the true precursor of squamous carcinoma and warrants aggressive management. Anal intraepithelial lesions II showed a virus distribution that was similar to low-grade dysplasia. In addition, a subset of these that were associated with type 16 or 18 showed progression, whereas those associated with non-16/18 subtypes regressed, thereby raising the possibility of conservative management for these lesions.
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Affiliation(s)
- Anna K Wong
- Department of Pathology and Laboratory Medicine, George Burns and Gracie Allen Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
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Ogilvie JW, Park IU, Downs LS, Anderson KE, Hansberger J, Madoff RD. Anal Dysplasia in Kidney Transplant Recipients. J Am Coll Surg 2008; 207:914-21. [DOI: 10.1016/j.jamcollsurg.2008.08.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2008] [Revised: 07/31/2008] [Accepted: 08/05/2008] [Indexed: 12/16/2022]
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30
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Genotyping of human papillomavirus DNA in anal biopsies and anal swabs collected from HIV-seropositive men with anal dysplasia. J Acquir Immune Defic Syndr 2008; 49:32-9. [PMID: 18667921 DOI: 10.1097/qai.0b013e318183a905] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
BACKGROUND Human papillomavirus (HPV) causes anal intraepithelial neoplasia (AIN) in HIV-seropositive men. The detection of HPV genotypes in anal biopsies and swabs was compared. METHODS HPV DNA was detected in anal swabs and biopsies obtained concurrently from 154 HIV-seropositive men [31 without AIN, 60 low-grade AIN (AIN-1), 62 high-grade AIN (AIN-2,3), and 1 indeterminate AIN] under or eligible to highly active antiretroviral therapy. RESULTS HPV DNA was detected in 24.2% of normal biopsies compared with 93.5% with AIN-2,3 (P < 0.001) and 88.3% with AIN-1 (P < 0.001). The proportion of biopsies containing multiple genotypes was greater in AIN-1 (n = 21, 35.0%; P = 0.002) and AIN-2,3 (n = 38, 58%; P < 0.001) than in normal biopsies (n = 2, 6.5%). The most frequent genotypes in order of frequency were in AIN-2,3 biopsies HPV-16, 18, 58, and 45 and were in AIN-1 biopsies HPV-6, 11, 16, and 39. Controlling for age, CD4 count, and smoking, the presence of high-risk HPV DNA in biopsies [odds ratio (OR) = 50.8, 95% confidence interval (CI): 13.0 to 199.5] but not in swabs (OR = 2.0, 95% CI: 0.6 to 7.0) was associated with AIN-2,3. CONCLUSIONS AIN-2,3 was associated with high-risk HPV infection detected in biopsies but not in swabs in men under or starting highly active antiretroviral therapy, possibly due to the presence of HPV foci outside of the neoplastic lesion.
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Kreuter A, Potthoff A, Brockmeyer NH, Gambichler T, Stücker M, Altmeyer P, Swoboda J, Pfister H, Wieland U. Imiquimod leads to a decrease of human papillomavirus DNA and to a sustained clearance of anal intraepithelial neoplasia in HIV-infected men. J Invest Dermatol 2008; 128:2078-83. [PMID: 18273049 DOI: 10.1038/jid.2008.24] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Anal intraepithelial neoplasia (AIN), a human papillomavirus (HPV)-associated precursor lesion of anal carcinoma, is highly prevalent in HIV-infected men having sex with men (MSM). This prospective follow-up study evaluated the long-term results of imiquimod treatment of AIN in 19 HIV-infected MSM. Standardized follow-up examinations included high-resolution anoscopy, anal cytology/histology, HPV typing, and DNA load determination for HPV types 16, 18, 31, and 33. Mean follow-up time was 30.3 months. A total of 74% (14/19) of the patients remained free of AIN at the previously treated site. Five patients (26%) had recurrent high-grade AIN after a mean time of 24.6 months. At the end of follow-up, the numbers of HPV types as well as high-risk HPV-DNA loads were significantly lower than before therapy. During follow-up, 58% of all patients (11/19) developed new anal cytological abnormalities in previously normal, untreated anal regions. 55% of these new AIN lesions were high-grade lesions and most of them were located intra-anally and associated with high-risk HPV types not detectable before therapy. These results demonstrate that imiquimod leads to a high rate of long-term clearance of AIN in HIV-positive men together with a prolonged decrease of high-risk HPV-DNA load. However, new AIN lesions associated with previously undetected HPV types frequently occur in untreated areas.
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Roka F, Roka J, Trost A, Schalk H, Zagler C, Kirnbauer R, Salat A. Anal human papillomavirus testing with Digene's hybrid capture 2 using two different sampling methods. Dis Colon Rectum 2008; 51:62-6. [PMID: 18030530 DOI: 10.1007/s10350-007-9082-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2006] [Revised: 07/01/2007] [Accepted: 07/03/2007] [Indexed: 02/08/2023]
Abstract
PURPOSE The incidence of human papillomavirus detection in the anal canal is rising. Efficient anal screening by cytology is hampered because of poor specificity. Human papillomavirus (HPV) testing is proposed in addition to Papanicolaou (Pap) testing for the detection of cervical neoplasia. The purpose of this study was to determine the usefulness of a human papillomavirus-DNA detection test to detect human papillomavirus-associated disease and to compare two different methods of sample collection. METHODS In 555 patients, anal samples were obtained by using a cervical brush and a Dacron swab to test for high-risk and low-risk human papillomavirus-DNA. Patients positive for human papillomavirus-DNA underwent anoscopy. Biopsies were taken from visible lesions. RESULTS Low-risk human papillomavirus-DNA was found in 325 of 555 patients (58.6 percent) and high-risk human papillomavirus-DNA in 285 of 555 patients (51.4 percent). Positive results confined to one single test method were higher for Dacron swab sampling (2.3 vs. 4.3 percent for low-risk human papillomavirus, P < 0.0001; 3.1 vs. 4.9 percent for high-risk human papillomavirus, P < 0.001). A positive correlation of relative light units was found for both sampling methods in the total cohort (P < 0.0001) as well as for patients who tested human papillomavirus-positive by both sampling techniques (P < 0.0001). Sampling with Dacron swabs yielded higher relative light units values compared with sampling with cervical brush for low-risk human papillomavirus-DNA and high-risk human papillomavirus-DNA. CONCLUSIONS Anal screening for human papillomavirus-DNA by hybrid capture 2 is a useful method for detection of human papillomavirus-associated disease. Sample collection using Dacron swabs identifies more human papillomavirus-positive patients, and yields higher relative light unit values than using the cervical brush. Further studies are needed to determine the exact value of hybrid capture 2 in the screening for (pre)cancerous lesions of the anal canal.
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Affiliation(s)
- Florian Roka
- Department of Dermatology, Division of General Dermatology, Medical University Vienna, Waehringer Guertel 1820, Vienna, Austria
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Sanclemente G, Herrera S, Tyring SK, Rady PL, Zuleta JJ, Correa LA, He Q, Wolff JC. Human papillomavirus (HPV) viral load and HPV type in the clinical outcome of HIV-positive patients treated with imiquimod for anogenital warts and anal intraepithelial neoplasia. J Eur Acad Dermatol Venereol 2007; 21:1054-60. [PMID: 17714124 DOI: 10.1111/j.1468-3083.2007.02169.x] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To evaluate the efficacy of 5% imiquimod in HIV-positive male patients with anogenital warts or anal intraepithelial neoplasia (AIN), and to elucidate whether human papillomavirus (HPV) type and viral load were important for clinical outcome and recurrences. METHODS Thirty-seven patients with histologically proven anogenital warts or AIN were enrolled. Topical 5% imiquimod was applied three times per week for more than 8 h overnight for 16 weeks, although patients were allowed to continue therapy for 4 more weeks if they did not have complete clearance of lesions. RESULTS Mean age was 34 years. The perianal area was the main lesion location. Thirty-three patients had CD4 counts of < 500 cells/mm(3). Eighteen patients had a histopathological diagnosis of AIN-1. Main HPV types detected corresponded to low-risk HPV types. At 20 weeks of therapy, 46% patients achieved total clearance whereas 14 patients had > 50% clearance. Recurrence was observed in 5 of 17 patients who cleared. Clearance was not influenced by patients' CD4 counts, wart location, HIV viral load or HPV viral load. CONCLUSIONS The assumption that visible perianal warts are benign lesions in HIV-positive patients has to be reevaluated since an important number of such lesions could correspond to low-grade anal disease, which in turn could progress to high-grade anal disease or cancer. In addition, our results in this preliminary study indicate that imiquimod appears to be effective in treating AIN in HIV-positive patients. Further studies are needed to document its utility to prevent high-grade dysplasia and/or anal cancer.
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Affiliation(s)
- G Sanclemente
- Dermatology Section, Department of Internal Medicine, University of Antioquia, Medellín, Colombia.
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Ciobotaru B, Leiman G, St John T, Hyman N, Ramundo M, Grace C. Prevalence and risk factors for anal cytologic abnormalities and human papillomavirus infection in a rural population of HIV-infected males. Dis Colon Rectum 2007; 50:1011-6. [PMID: 17429713 DOI: 10.1007/s10350-006-0873-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
PURPOSE This study was designed to determine the prevalence and risk factors for anal squamous intraepithelial lesions and human papillomavirus infection in a rural population of HIV-infected males. METHODS A cross-sectional study was performed. Risk factors were collected. Anal Papanicolaou smear and human papillomavirus screening for oncogenic types were performed. RESULTS Of 211 eligible male patients, 149 (70.6 percent) participated. HIV transmission risk was predominantly males who have sex with males (82 percent). The mean duration of HIV infection was 9.9 years. Ninety (60 percent) males had abnormal anal cytology, including atypical cells of unknown significance 40 (26 percent), low-grade squamous intraepithelial lesions 28 (19 percent), and high-grade squamous intraepithelial lesions 22 (15 percent). Human papillomavirus was detected in 61 percent. Binary logistic regression adjusted risks for abnormal anal cytology included: males who have sex with males (P<0.001), human papillomavirus infection (P<0.001), history of anogenital warts (P=0.014), and the mean lowest CD4 count (abnormal cytology, 158 (standard deviation, 135), negative cytology, 208 (standard deviation, 180; P=0.017)). Twenty-two patients with high-grade squamous intraepithelial lesions underwent colorectal surgical examination and anoscopy. Two (10 percent) were found to have invasive squamous-cell carcinoma and three (15 percent) others had mass lesions with high-grade squamous intraepithelial lesions. CONCLUSIONS Anal squamous intraepithelial lesions and oncogenic human papillomavirus are highly prevalent in males infected with HIV and living in a rural setting.
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Affiliation(s)
- Bogdan Ciobotaru
- Department of Pathology, University of Vermont College of Medicine, Fletcher Allen Health Care, Burlington 05401, USA
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Abstract
Among individuals with HIV-infection, coinfection with oncogenic viruses including EBV, HHV-8, and HPV cause significant cancer-related morbidity and mortality. It is clear that these viruses interact with HIV in unique ways that predispose HIV-infected individuals to malignant diseases. In general, treatment directed specifically against these viruses does not appear to change the natural history of the malignant disease, and once the malignancy develops, if their health permits, HIV-infected patients should be treated using similar treatment protocols to HIV-negative patients. However, for the less frequent HIV-related malignancies, such as PEL, or MCD, optimal treatments are still emerging. For certain AIDS-defining malignancies, it is clear that the widespread access to HAART has significantly decreased the incidence, and improved outcomes. However, for other cancers, such as the HPV-related tumors, the role of HAART is much less clear. Further research into prevention and treatment of these oncogenic virally mediated AIDS-related malignancies is necessary.
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Affiliation(s)
- Anita Arora
- Center for Clinical Studies, Houston, TX, USA
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Chiao EY, Giordano TP, Palefsky JM, Tyring S, El Serag H. Screening HIV-infected individuals for anal cancer precursor lesions: a systematic review. Clin Infect Dis 2006; 43:223-33. [PMID: 16779751 DOI: 10.1086/505219] [Citation(s) in RCA: 228] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2006] [Accepted: 03/20/2006] [Indexed: 01/08/2023] Open
Abstract
Individuals with human immunodeficiency virus (HIV) infection are at increased risk for human papillomavirus-related squamous cell cancer of the anus. Screening HIV-infected patients for squamous cell cancer of the anus and human papillomavirus-related anal dysplasia may prevent excess morbidity and mortality. We have conducted a systematic review of the indirect evidence in the literature regarding the utility of anal Papanicolau (Pap) smear screening of HIV-infected individuals in the highly active antiretroviral therapy era. Although there are no published studies evaluating the efficacy of anal Pap smear screening for preventing squamous cell cancer of the anus or anal intraepithelial neoplasia, we reviewed data regarding the burden of disease, anal Pap smear sensitivity and specificity, the prevalence of anal dysplasia, and 1 cost effectiveness study. The available evidence demonstrates that HIV-infected individuals have an increased risk for squamous cell cancer of the anus and anal intraepithelial neoplasia. This review identifies important areas for further study before routine anal Pap smear screening can be recommended.
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Affiliation(s)
- Elizabeth Y Chiao
- Baylor College of Medicine, Houston Center for Quality of Care and Utilization Studies, Health Services Research and Development Service, Michael E. DeBakey Veterans Affairs Medical Center, TX, USA.
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Abstract
BACKGROUND Squamous cell carcinoma of the anal canal provides a model for studying the contribution of human papillomavirus (HPV) and human immunodeficiency virus (HIV) infection to the development of neoplasia. This paper reviews the existing literature relating to the molecular biology of anal squamous cell carcinoma and proposes a theory of pathogenesis. METHODS A Medline literature search was performed to identify English articles on the pathogenesis of squamous cell carcinoma of the anus; further articles were obtained from the references quoted in the literature initially reviewed. RESULTS HPV infection and subsequent HPV DNA integration are necessary, but not sufficient, to cause cancer progression. Loss of heterozygosity at 11q23 is the most consistent genomic change observed. Loss of heterozygosity at 17p, 18q and 5q is frequently observed in tumours of HIV-negative patients, but not in those of HIV-positive patients. Current data suggest that mutations in p53, DCC and APC tumour suppressor genes contribute to the stepwise progression of anal squamous cell carcinoma in immunocompetent individuals. CONCLUSION In comparison with immunocompetent individuals, HIV-positive patients have persistent HPV infection in the anal canal. In this population, microsatellite instability, rather than chromosomal instability, appears to be a preferred pathway for rapid progression towards invasive carcinoma.
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Affiliation(s)
- P Gervaz
- Department of Surgery, University Hospital Geneva, Geneva, Switzerland.
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Darvishian F, Stier EA, Soslow RA, Lin O. Immunoreactivity of p16 in anal cytology specimens: histologic correlation. Cancer 2006; 108:66-71. [PMID: 16404747 DOI: 10.1002/cncr.21711] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
BACKGROUND Cytology has been proposed as a potential screening tool in the evaluation of squamous anorectal disease in view of the morphologic similarities between anal and cervical squamous lesions. Previous studies have demonstrated that p16 overexpression correlates with the degree of dysplasia in the uterine cervix with promising results. Due to potential diagnostic pitfalls in anal cytology, p16 overexpression in these specimens was studied. METHODS Patients with anorectal cytology who underwent follow-up biopsy within 1 year were selected. Forty-three anorectal cytologic specimens from 29 patients were selected. One slide of each case was destained. Avidin-biotin immunocytochemical studies with the monoclonal antibody CINtec p16(INK4a) were performed. The results of the p16 immunostaining were correlated with the histologic findings. RESULTS Twenty-eight of the 43 cases demonstrated the presence of squamous cells immunoreactive for p16 in cytology specimens. The p16-positive cells were identified in cases of low-grade squamous intraepithelial lesion (LSIL) (n = 3 cases), high-grade squamous intraepithelial lesion (HSIL) (n = 22 cases), and invasive squamous carcinoma (n = 1 case), and in 2 cases with negative follow-up biopsies. No cell immunoreactive for p16 was found in 15 cases (5 benign cases and 10 cases with either LSIL or HSIL). The sensitivity and specificity of p16 immunoreactivity in the detection of anal intraepithelial neoplasia or carcinoma were 72% and 71%, respectively. The positive and negative predictive values were 93% and 33%, respectively. CONCLUSIONS The presence of p16 immunoreactivity is a good predictor of dysplasia in anal specimens. However, the sensitivity and specificity of this marker are not high.
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Affiliation(s)
- Farbod Darvishian
- Department of Pathology, Memorial Sloan-Kettering Cancer Center, New York, New York 10021, USA
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Anderson JS, Vajdic C, Grulich AE. Is screening for anal cancer warranted in homosexual men? Sex Health 2006; 1:137-40. [PMID: 16335300 DOI: 10.1071/sh03019] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Some investigators have proposed screening homosexual men for anal cancer and its probable precursor, high grade anal intraepithelial neoplasia (AIN). Using widely accepted criteria for the introduction of screening programmes, this paper reviews the current evidence for screening for this condition in this high risk population and highlights areas where additional research is required. While it is accepted that the incidence of anal cancer is at least 20 times higher in homosexual men than the general population, the natural history of anal cancer and its precise relationship with AIN is not clearly understood. Anal intraepithelial neoplasia is a very highly prevalent disease among homosexual men, but little is known about what predicts progression to invasive disease. The screening tests, exfoliate cytology and high resolution anoscopy, have a sensitivity of between 45 and 70%. Treatment options for AIN are limited by morbidity and high recurrence rates and there are no randomised controlled trials studying the efficacy of therapeutic agents or surgery for high grade AIN, although immunotherapies show very early promise. Theoretically, early detection may lead to better treatment outcomes. Studies of the potential negative consequences of screening programmes on the homosexual population are needed. The currently available data does not support the implementation of a screening programme for AIN and anal cancer in homosexual men in Australia.
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Affiliation(s)
- Jonathan StC Anderson
- National Centre In HIV Epidemiology and Clinical Research, Darlinghurst, NSW, Australia.
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Vajdic CM, Anderson JS, Hillman RJ, Medley G, Grulich AE. Blind sampling is superior to anoscope guided sampling for screening for anal intraepithelial neoplasia. Sex Transm Infect 2005; 81:415-8. [PMID: 16199742 PMCID: PMC1745038 DOI: 10.1136/sti.2004.014407] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVES Anal cytology smears are either collected "blind" (swab inserted 4 cm into anal canal and rotated) or guided through an anoscope (transformation zone visualised and then sampled). We compared these smear techniques with respect to sample quality and patient acceptability. METHODS Using a paired, random sequence clinical trial, 151 homosexual men (n = 95 HIV positive) underwent both smear techniques at a single visit; smear order was randomised and specimens were read blind. Both techniques utilised a Dacron swab, with water lubrication. Cytological specimens were prepared using a liquid based collection method (ThinPrep). The outcome measures were cytological specimen adequacy, cytological classification, presence of rectal columnar, squamous and metaplastic cells, contamination, patient comfort and acceptability, and volume of fluid that remained after the ThinPrep procedure. RESULTS Regardless of smear order, guided smears were less likely to detect higher grade abnormalities than blind smears (15 v 27 cases, p = 0.001). Controlling for smear order, guided smears were more likely to be assessed as "unsatisfactory" for cytological assessment (OR 6.93, 95% CI 1.92 to 24.94), and contain fewer squamous (OR 0.20, 95% CI 0.04 to 0.94) and metaplastic cells (OR 0.12, 95% CI 0.03 to 0.54) than blind smears; there were no other statistically significant differences between techniques. Regardless of smear technique, first performed smears were more likely to detect a higher grade abnormality than second performed smears (23 v eight cases, p < 0.001). CONCLUSIONS Blind cytology smears are superior to anoscope guided smears for screening for anal neoplasia in homosexual men.
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Affiliation(s)
- C M Vajdic
- National Centre in HIV Epidemiology and Clinical Research, University of New South Wales, Sydney, NSW, 2010, Australia.
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Fagan SP, Bellows CF, Albo D, Rodriquez-Barradas M, Feanny M, Awad SS, Berger DH. Length of human immunodeficiency virus disease and not immune status is a risk factor for development of anal carcinoma. Am J Surg 2005; 190:732-5. [PMID: 16226949 DOI: 10.1016/j.amjsurg.2005.07.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2005] [Revised: 07/07/2005] [Accepted: 07/07/2005] [Indexed: 11/20/2022]
Abstract
BACKGROUND The anal epithelium is subject to dysplastic change in patients with human immunodeficiency virus (HIV). We sought to determine if the duration of HIV disease or the patient's immune status were associated with the development of anal carcinoma. METHODS HIV-positive patients diagnosed with anal neoplasms were reviewed. Statistical analysis was performed via an unpaired Student t test and the Fisher exact test. RESULTS Fourteen patients were identified, 7 with anal intraepithelial neoplasms (group 1) and 7 with anal carcinoma (group 2). Human papillomavirus was detected in 100% of patients in group 1 and in 67% of patients in group 2. There was no significant difference in the level of immunosuppression as assessed by the CD4 counts (266.9 +/- 48.5 vs. 274.7 +/- 92.0 cell/c microl; P = .94) and viral loads (19,243 +/- 18,034 vs. 67,140 +/- 39,570 RNA/mL; P = .29) between groups 1 and 2, respectively. Group 2 had been HIV positive for a significantly longer period of time (12.6 +/- 2.3 y) compared with group 1 (5.9 +/- 2.0 y, P = .05). CONCLUSIONS The most significant factor for the development of invasive anal carcinoma in patients with HIV is duration of disease. As a result of improved long-term survival secondary to new HIV therapy, anal invasive carcinoma will become an increasing problem.
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Affiliation(s)
- Shawn P Fagan
- Michael E. DeBakey Department of Surgery, Michael E. DeBakey Veterans Affairs Medical Center, Operative Care Line, 2002 Holcombe Blvd., VA 112, Houston, TX 77030, USA.
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Fox PA, Seet JE, Stebbing J, Francis N, Barton SE, Strauss S, Allen-Mersh TG, Gazzard BG, Bower M. The value of anal cytology and human papillomavirus typing in the detection of anal intraepithelial neoplasia: a review of cases from an anoscopy clinic. Sex Transm Infect 2005; 81:142-6. [PMID: 15800092 PMCID: PMC1764665 DOI: 10.1136/sti.2003.008318] [Citation(s) in RCA: 102] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Previous studies have reached differing conclusions about the utility of anal cytology as a screening tool for anal intraepithelial neoplasia (AIN). There is a need also to establish whether HPV typing offers a useful adjunct to screening. METHODS We analysed data from 99 consecutive homosexual/bisexual male patients (89 HIV-1 positive) who underwent high resolution anoscopy. Follow up visits for these patients were also included, giving a total of 160 anoscopic procedures. Comparison was made between results of anal cytology using the sampling method of Palefsky, and histological findings of biopsies taken from abnormal areas seen on high resolution anoscopic examination of the anal canal. Swabs taken concurrently with the cytology were analysed for the presence of human papillomavirus (HPV) DNA and compared with the cytological and histological findings. RESULTS The sensitivity of the cytology was 83%, and the specificity 38% when compared with histology. At screening of 34 asymptomatic men, 83% had anal cytological dysplasia and 78% had AIN. There were no significant differences in the prevalence of hrHPV genotypes between different cytological or histological grades of abnormalities. CONCLUSION Anal cytology by the Palefsky method is simple to undertake, has a sensitivity and specificity comparable with cervical cytology, and can therefore be used as the basis of a pilot screening project in centres with large cohorts of HIV positive homosexual men who have a high risk of developing anal carcinoma. HPV genotyping is not a useful adjunct to cytological screening.
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Affiliation(s)
- P A Fox
- Department of HIV and Genitourinary Medicine, Chelsea and Westminster Hospital, 369 Fulham Road, London SW10 9NH, UK.
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Abstract
Abstract
Background
Anal intraepithelial neoplasia (AIN) is believed to be a precursor of anal squamous cell cancer and its incidence is rising in high-risk groups, particularly those infected with the human immunodeficiency virus (HIV). The natural history of AIN is unclear and management strategies are lacking.
Methods
This review is based on a literature search (Medline and PubMed) with manual cross-referencing of all articles related to AIN.
Results and conclusions
The aetiology of AIN is intricately linked with human papilloma viruses. The pathological processes involved in the progression of AIN are becoming clearer but the natural history, particularly the rate of progression to invasive cancer, remains unknown. There is no standard management for AIN and this is mainly due to difficulties in both diagnosis and treatment. A variety of treatment options have been tried with varying success. Surgery is associated with significant recurrence, particularly in HIV-positive patients. Non surgical approaches with imiquimod, photodynamic therapy and vaccination are appealing, and further work is required. Long-term follow-up of these patients is essential until the natural history of AIN becomes clearer.
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Affiliation(s)
- F Abbasakoor
- Department of Surgery, Royal Free and University College Medical School, London, UK
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Kreuter A, Hochdorfer B, Stücker M, Altmeyer P, Weiland U, Conant MA, Brockmeyer NH. Treatment of anal intraepithelial neoplasia in patients with acquired HIV with imiquimod 5% cream. J Am Acad Dermatol 2004; 50:980-1. [PMID: 15153912 DOI: 10.1016/j.jaad.2003.12.025] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Friedlander MA, Stier E, Lin O. Anorectal cytology as a screening tool for anal squamous lesions: cytologic, anoscopic, and histologic correlation. Cancer 2004; 102:19-26. [PMID: 14968414 DOI: 10.1002/cncr.11888] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND Anorectal cytology has been increasingly used as a screening method for anal squamous lesions, particularly in high-risk, homosexual, patients with human immunodeficiency virus infection. The diagnostic cytologic, anoscopic, and histologic criteria bear some resemblance to the criteria used in cervicovaginal samples with few differences. It is important to recognize these differences because they can lead to an erroneous diagnosis of dysplasia and unnecessary procedures. METHODS Seventy-eight anorectal cytology specimens from 51 patients were reviewed blindly. Of the 51 patients, 33 were HIV positive. The cytology specimens consisted of 75 ThinPrep (Cytyc, Boxborough, MA) and 3 conventional Papanicolaou-stained smear specimens. The revised diagnosis was compared with the original diagnosis, corresponding histology specimens, and anoscopic results, when available. RESULTS Six specimens were unsatisfactory for review. The revised diagnosis was negative in 15 patients, atypical squamous cells of undetermined significance in 3 patients, low-grade squamous intraepithelial lesions in 24 patients, high-grade squamous intraepithelial lesions in 28 patients, and squamous cell carcinoma (SQC) in 2 patients. Five patients with an original diagnosis of SQC had the diagnosis revised upon review of their specimens. It is noteworthy that these five specimens showed the presence of atypical parakeratotic cells. Thirty-two patients had anoscopic evaluation and 30 patients had histologic correlation. Twenty-seven patients with abnormal anoscopic findings had confirmed abnormal histologic findings. Twenty- five of the 32 (78%) patients had abnormal cytology that correlated with abnormal anoscopic findings. CONCLUSIONS Anorectal cytology is an accurate method for screening patients for anal squamous lesions. Atypical parakeratotic cells represent a potential pitfall. Anoscopy is important in confirming the presence of a lesion, but only a biopsy can accurately determine the grade of a lesion.
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Höpfl R, Petter A, Thaler P, Sarcletti M, Widschwendter A, Zangerle R. High prevalence of high risk human papillomavirus-capsid antibodies in human immunodeficiency virus-seropositive men: a serological study. BMC Infect Dis 2003; 3:6. [PMID: 12723991 PMCID: PMC156631 DOI: 10.1186/1471-2334-3-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2002] [Accepted: 04/30/2003] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Serological study of human papillomavirus (HPV)-antibodies in order to estimate the HPV-prevalence as risk factor for the development of HPV-associated malignancies in human immunodeficiency virus (HIV)-positive men. METHODS Sera from 168 HIV-positive men and 330 HIV-negative individuals (including 198 controls) were tested using a direct HPV-ELISA specific to HPV-6, -11, -16, -18, -31 and bovine PV-1 L1-virus-like particles. Serological results were correlated with the presence of HPV-associated lesions, the history of other sexually transmitted diseases (STD) and HIV classification groups. RESULTS In HIV-negative men low risk HPV-antibodies were prevailing and associated with condylomatous warts (25.4%). Strikingly, HIV-positive men were more likely to have antibodies to the high-risk HPV types -16, -18, -31, and low risk antibodies were not increased in a comparable range. Even those HIV-positive heterosexual individuals without any HPV-associated lesions exhibited preferentially antibody responses to the oncogenic HPV-types (cumulative 31.1%). The highest antibody detection rate (88,8%) was observed within the subgroup of nine HIV-positive homosexual men with anogenital warts. Three HIV-positive patients had HPV-associated carcinomas, in all of them HPV-16 antibodies were detected. Drug use and mean CD4-cell counts on the day of serologic testing had no influence on HPV-IgG antibody prevalence, as had prior antiretroviral therapy or clinical category of HIV-disease. CONCLUSION High risk HPV-antibodies in HIV-infected and homosexual men suggest a continuous exposure to HPV-proteins throughout the course of their HIV infection, reflecting the known increased risk for anogenital malignancies in these populations. The extensive increase of high risk antibodies (compared to low risk antibodies) in HIV-positive patients cannot be explained by differences in exposure history alone, but suggests defects of the immunological control of oncogenic HPV-types. HPV-serology is economic and can detect past or present HPV-infection, independently of an anatomical region. Therefore HPV-serology could help to better understand the natural history of anogenital HPV-infection in HIV-positive men in the era of antiretroviral therapy.
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Affiliation(s)
- Reinhard Höpfl
- Department of Dermatology and Venereology, University Clinic Innsbruck, Innsbruck (A-6020), Austria
| | - Anton Petter
- Department of Dermatology and Venereology, University Clinic Innsbruck, Innsbruck (A-6020), Austria
| | - Petra Thaler
- Department of Dermatology and Venereology, University Clinic Innsbruck, Innsbruck (A-6020), Austria
| | - Mario Sarcletti
- Department of Dermatology and Venereology, University Clinic Innsbruck, Innsbruck (A-6020), Austria
| | - Andreas Widschwendter
- Department of Obstetrics and Gynecology, University Clinic Innsbruck, Innsbruck (A-6020), Austria
| | - Robert Zangerle
- Department of Dermatology and Venereology, University Clinic Innsbruck, Innsbruck (A-6020), Austria
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Abstract
OBJECTIVE To review the current literature on HIV associated anal intraepithelial neoplasia (AIN). METHODS A comprehensive Medline/Pubmed search was performed for the years 1980-2001 (January) for articles pertaining to HIV associated anal intraepithelial neoplasia. From the MeSH terms "anal intraepithelial neoplasia" and "anal cancer" the following subheadings were used: HIV, homosexual men, HPV, Epidemiology, Etiology, Mortality, Diagnosis, Screening, Drug Therapy, Surgical Therapy, Radio Therapy, Risk factors, ASIL. The search was limited to "human" for all searches. In the absence of enough "randomised controlled trials" the search was extended to clinical trials, reviews, and case reports. One analysis on cost effectiveness and two abstracts presented at 12th World AIDS Conference and 6th Conference on Retrovirus and Opportunistic Infections were included. The 44 publications referred to originate from the United Kingdom (9), the United States (26), and Denmark (5), with one each from Switzerland, Germany, Australia, and France. The Cochrane Database of systematic reviews yielded 11 complete reviews for "anal cancer" and none for "anal intraepithelial neoplasia." The textbook of AIDS-related cancers and their treatment was consulted. We also included our personal experience from the treatment of patients at the Chelsea and Westminster Hospital, one of the largest centres for the management of HIV disease in Europe. CONCLUSION Routine anal cytological screening followed by appropriate management of AIN is an important issue for HIV infected patients. The natural history of AIN has not been fully established and this prevents clinicians from defining clear management protocols. There is early evidence that the benefits of highly active antiretroviral therapy (HAART) in terms of restoring immune function and reducing opportunistic infections and some neoplasms may not extend to regression of AIN. Under these circumstances it might be predicted that AIN and subsequent progression to invasive anal cancer would rise as HAART prolongs the lives of seropositive people. However, routine anal cytological screening will surely have to await an effective proved intervention for AIN and this would seem to be a pressing clinical goal.
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Affiliation(s)
- F Martin
- Department of Oncology, Chelsea and Westminster Hospital, Fulham Road, London SW10 9NH, UK
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Mann CH, Steele JC, Burton A, Bailey AS, Etherington IJ, Luesley DM. LLETZ--evidence of its efficacy against HPV infection. Gynecol Oncol 2001; 81:125-7. [PMID: 11277668 DOI: 10.1006/gyno.2001.6150] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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49
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Affiliation(s)
- A S Kadish
- Albert Einstein Comphrensive Cancer Center, Albert Einstein College of Medicine, USA
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50
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Scott M, Nakagawa M, Moscicki AB. Cell-mediated immune response to human papillomavirus infection. CLINICAL AND DIAGNOSTIC LABORATORY IMMUNOLOGY 2001; 8:209-20. [PMID: 11238198 PMCID: PMC96039 DOI: 10.1128/cdli.8.2.209-220.2001] [Citation(s) in RCA: 169] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- M Scott
- Department of Pediatrics, School of Medicine, University of California San Francisco, San Francisco, California 94143, USA.
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