Premalignant Cervical Lesions Research Articles

MORPHOMETRIC ANALYSIS OF PAP SMEARS AND CERVICAL BIOPSIES.

Background: In women malignant lesions of the cervix are the most frequent cause of mortality and morbidity and cervical cancer is the third most common cause of cancer deaths worldwide.Cervical cancer incidence is progressively reducing due to the routine use of Pap smears and cervical biopsy. Aim of the study is to use Image Morphometric Software in order to create macro-images to analyze a large number of cells at a given time. A one Methods: year retrospective study was conducted in the Department of Pathology, Dr PSIMS & RF and data pertaining to all pap smears and their corresponding biopsies were reviewed. Each case was analysed with respect to age, and symptoms of the patient. A total of 30 patients aged bet Results: ween 35 and 70 years for whom both cervical biopsy and pap smears were done were studied over a period of 1 year. Based on Age, Symptoms, both pap smears and cervical biopsies were taken and studied . Among the biopsies studied 60% were diagnosed as Chronic Cervicitis aged between 35 to 45 years, distribution of lesions include : Endocervical Polyp (20%) aged between 45 to 50 years, Moderate Dysplasia (10%) aged between 55 to 60 years, Moderately differentiated Squamous Cell Carcinoma (10%) aged between 60 to 70 years. Among pap smears 60% inammatory smears, 20% polypoidal endocervicitis, 10% ASCUS, 10% LSIL. Testing cervical epithelium by Pap smear is a very si Conclusion: mple useful, economical and safe tool for early detection of premalignant and malignant cervical lesions. Gold standard is histopathological examination. The correlation studies are very important tools that can be used in the quality assurance of cytology laboratories.

The Correlation of Papanicolaou Smears and Clinical Features to Identify the Common Risk Factors for Cervical Cancer: A Retrospective and Descriptive Study from a Tertiary Care Hospital in Trinidad.

Background: Cervical cancer, the fourth most frequent cancer in women, is associated with the human papillomavirus (HPV). This study identifies risk factors and clinical findings for abnormal cervical cytology and histopathology in the Trinidad and Tobago populations. Some risk factors include early age of first coitus, a high number of sexual partners, high parity, smoking, and using certain medications, such as oral contraception. This study aims to identify the significance of Papanicolaou (pap) smears and the common risk factors that contribute to the development of premalignant and malignant cervical lesions. Method: A three-year retrospective, descriptive study of cervical cancer was conducted at the Eric Williams Medical Sciences Complex. The subject population included 215 female patients aged 18 years and older with the following documented abnormal cervical cytology: (ASCUS), ASC-H, LSIL, HSIL, Atypical Glandular cells, HPV, Adenocarcinoma, and Invasive Squamous Cell Carcinoma. Histopathology records were analysed for thirty-three of these patients. Patients' information was recorded on data collection sheets adapted from the North Central Regional Health Authority's cytology laboratory standardised reporting format request form. Results and Findings: The data were analysed via Statistical Package for Social Sciences (SPSS) software edition 23 using frequency tables and descriptive analysis. The mean sample age of the population was 36.7 years, the first age of coitus was 18.1 years, the number of sexual partners was 3.8, and the number of live births was 2. LSIL was the most popular abnormal finding, 32.6%, followed by HSIL, 28.8%, and ASCUS, 27.4%. Most histopathological reports resulted in CIN I and II. Conclusions: The significant risk factors observed for cytology abnormalities and premalignant lesions were early age of coitus, a high number of sexual partners, and no use of contraception. Patients mostly presented as asymptomatic despite obtaining abnormal cytology results. Hence, regular pap smear screening should continue to be highly encouraged.

Economic burden of cervical cancer and premalignant lesions associated with human papilloma virus: a societal perspective

ABSTRACT Background Cervical cancer is one of the most common cancers in women, the cause of which is mostly human papilloma virus (HPV). The aim of this study was to determine the economic burden of cervical cancer and premalignant lesions associated with HPV infection from a societal perspective. Methods The study is a partial economic evaluation (cost of illness), which was conducted cross-sectionally in the referral university clinic in Fars province in 2021. The prevalence-based and bottom-up approaches used to calculate the costs, the indirect costs were calculated by human capital approach. Results The mean cost of premalignant lesions associated with HPV infection was USD 2,853 per patient, which 68.57% was direct medical costs. In addition, the mean cost of cervical cancer was USD 39,327 per patient, the largest share of which (57.9%) was related to indirect costs. The mean annual cost of cervical cancer patients in the country was estimated at USD 40,884,609 as well. Conclusion Cervical cancer and premalignant lesions associated with HPV infection imposed a significant economic burden on the health system and patients. The results of the present study can help health policymakers with efficient and equitable prioritization and allocation of resources.

Knowledge, Attitude and Practice on Cervical Cancer Screening Among Female Reproductive Health Clients in Zewditu Memorial Hospital, Addis Ababa, Ethiopia

<i>Background: </i>Cervical cancer is the most common gynaecologic malignancy among women. In general, poor level of awareness, lack of effective screening program, overshadowed by other health concerns (such as AIDS, TB, cardiovascular and mental health), and lack of attentiveness to women’s health are a few of the possible factors for the noticed higher incidence rate of cervical cancer in Ethiopia.<i> Objective: </i>To assess the level of knowledge, attitude, and practice on cervical cancer screening among reproductive health clients aged 18-49 of Zewditu Memorial Hospital, Addis Ababa, Ethiopia. <i>Methods:</i> The study design was a cross-sectional descriptive study, conducted on 237 women who were enrolled with a simple random sampling method from March to October 2020. A structured pretested questionnaire was carried out to gather data and the collected data were entered into SPSS version 23 for analysis. Descriptive analysis using frequency, percentages, mean, and SD with bivariate analysis and multiple regressions was done. <i>Result: </i>About three-quarters (75.1%) of the participants heard about cervical cancer and out of the total participants 59% of them were found to have adequate knowledge, 58.2% with a positive attitude, and 51% of the participants were screened for cervical cancer. Lack of information about cervical cancer was the most reported reason for not attending cervical cancer screening. <i>Conclusion and recommendation:</i> The study showed more than half of the respondents had adequate knowledge, attitude, and practice on cervical cancer and screening for a premalignant cervical lesion. But still, there is a need to promote cervical cancer screening among women by informing them on their susceptibility to cervical cancer and encouraging a belief that active and regular screening can detect cervical cancer at the precancerous stage, hence enabling the early treatment and prevention of cancer development.

Prevention Strategies and Early Diagnosis of Cervical Cancer: Current State and Prospects.

Cervical cancer ranks third among all new cancer cases and causes of cancer deaths in females. The paper provides an overview of cervical cancer prevention strategies employed in different regions, with incidence and mortality rates ranging from high to low. It assesses the effectiveness of approaches proposed by national healthcare systems by analysing data published in the National Library of Medicine (Pubmed) since 2018 featuring the following keywords: "cervical cancer prevention", "cervical cancer screening", "barriers to cervical cancer prevention", "premalignant cervical lesions" and "current strategies". WHO's 90-70-90 global strategy for cervical cancer prevention and early screening has proven effective in different countries in both mathematical models and clinical practice. The data analysis carried out within this study identified promising approaches to cervical cancer screening and prevention, which can further enhance the effectiveness of the existing WHO strategy and national healthcare systems. One such approach is the application of AI technologies for detecting precancerous cervical lesions and choosing treatment strategies. As such studies show, the use of AI can not only increase detection accuracy but also ease the burden on primary care.

Determining the relationship between serum acute phase reactants and cervical premalignant lesions: a cohort study.

Acute phase reactants play a role in the progression and prognosis of many malignant and premalignant tumors. This study investigated the diagnostic value of certain reactants as markers for cervical premalignant lesions. Despite advanced screening and vaccination programs, cervical cancer remains a serious health problem worldwide. We aimed to determine the possible relationship between premalignant cervical disease and serum acute phase reactant levels. This study included 124 volunteers who underwent cervical cancer screening. We divided the patients into three groups according to cervical cytology and histopathological findings as follows: no cervical lesion, low-grade neoplasia, or high-grade neoplasia. We included women aged 25-65 years with benign smear or colposcopy results, low- and high-grade squamous intraepithelial lesions. The benign group was based only on cytology findings, whereas the other groups were based on histopathology findings. Demographic data and serum albumin, fibrinogen, ferritin, and procalcitonin levels were evaluated in the three groups. We found significant differences among the three groups in terms of age, albumin level, albumin/fibrinogen ratio, and procalcitonin level. The regression analysis revealed lower serum albumin levels in the low- and high-grade squamous intraepithelial lesion groups compared with the benign group. This is the first study to evaluate the importance of serum inflammatory markers in cervical intraepithelial lesions. Our results indicate that serum albumin level, albumin/fibrinogen ratio, procalcitonin level, and neutrophil values differ among cervical intraepithelial lesions.

Prognostic Value of Endocervical Curettage at the Time of Colposcopic Assessment of the Uterine Cervix: Cross-Sectional Analytical Research

Objective: This study aimed to investigate the necessity and diagnostic value of endocervical curettage (ECC) in cervical preneoplastic and neoplastic lesions. Material and Methods: A total of 296 patients who were admitted to the gynecologic oncology outpatient clinic at a single tertiary care center and who simultaneously underwent colposcopic biopsy and ECC between 2018 and 2020 were included in the study. Hematoxylin-Eosin (H&E), p16, and ki-67-stained preparations obtained from biopsy and curettage samples of the patients were analyzed by light microscope. Demographic data of the patients were obtained from the hospital system. Results were statistically and comparatively analyzed. Results: Cervical premalignant/malignant lesion was detected in 125 out of 296 patients and premalignant/malignant lesion was detected in 42 patients on ECC. Out of these 42 patients, 19 were diagnosed by ECC material alone. It was striking that all of the 5 HPV-18- positive patients were diagnosed with ECC material. When conization materials of CIN 2-3 patients were assessed with ECC results, it was observed that adenocarcinoma and glandular involvement were remarkably significant in ECC-positive patients. Conclusion: Our study involves important findings in the determination of the role of ECC in diagnosing cervical premalignant lesions. ECC simultaneously performed with colposcopic biopsy for appropriate women increases the diagnosticity of colposcopic biopsy procedure and gives information about glandular involvement. Moreover, it can decrease the risk of recurrence and minimize surgical margins.

Cytological characteristics of premalignant cervical epithelial lesions in postmenopausal women based on endocrine indices and parakeratosis.

To identify useful cytological findings for detecting premalignant lesions in postmenopausal women, cervicovaginal smear samples were analyzed and compared between women with or without premalignant lesions based on endocrine indices and presence of parakeratosis (PK). The cervicovaginal smear samples of postmenopausal women with premalignant lesions (n = 94) and those who were without (n = 344), who were diagnosed between 2012 and 2014 were retrieved and analyzed. Women cytologically diagnosed with malignancy or those with suspicion of malignancy were excluded from this study. Cytological endocrine indices, such as the maturation index (MI) and eosinophilic index (EI) and the prevalence of PK were compared between the groups and analyzed using the 2 × 2 χ2 test. The association of endocrine indices combined with the presence of PK and histological findings was also evaluated. Postmenopausal women with premalignant lesions had higher endocrine indices (EI of ≥11%; 65% vs. 43%, P < 0.01, f = 0.18) and a higher prevalence of PK positivity (PK ≥ 1; 46% vs. 7%, P < 0.01, f = 0.44) than those without lesions. Further analysis indicated that the combination of high EI and the presence of PK in postmenopausal women with cytological premalignant cases was highly associated with histological squamous intraepithelial lesions (SIL) (86% in women with premalignant lesions vs. 53% in those without; P = 0.01, f = 0.34). Our research demonstrated that high EI and PK positivity were correlated with SIL in postmenopausal women. These cytological findings could provide potential diagnostic clues for detecting dysplasia.

Comparison of Visual Inspection Methods Using Either Acetic Acid Solution or Lugol’s Iodine Solution with Colposcopy in Screening of Cervical Cancer: A Cross Sectional Study

Background & Objective: We compared two different methods of visual inspection of the cervix, including Visual inspection of the cervix with acetic acid (VIA) and Visual inspection of the cervix with Lugol's iodine (VILI) in terms of sensitivity and specificity in diagnosis of pre-malignant cervical lesions in comparison to colposcopy guided biopsy.Materials & Methods: In this cross-sectional study, a total number of 200 women who were referred to the colposcopy clinic of Arash women’s hospital (Tehran, Iran) for cervical cancer screening, underwent VIA, VILI, and colposcopy guided biopsy during 2018-2019.Results: The calculated sensitivity and specificity of VIA and VILI in this population were (100% and 69.5%) and (100% and 60%), respectively, whereas the sensitivity and specificity of both VIA and VILI tests in combination were 100% and 77.2%. The positive and negative predictive values were 32.7% and 100%, respectively, when combined form of VIA and VILI was applied in this population.Conclusion: VIA and VILI alone or in combination could be used as screening tests to evaluate the presence of cervical cancer and in case of positive results, supplementary tests such as colposcopy guided biopsy could be performed for definite diagnosis.

Frequency of cervical premalignant lesions in the gynecologic patients of a tertiary hospital in Mogadishu, Somalia

BackgroundCervical cancer is the fourth most common cancer worldwide and is the most frequently diagnosed cancer in 23 countries and the most common cause of death in 36 countries, mostly from Sub-Saharan African countries. Cervical screening is a key element to reduce the incidence and mortality of cervical cancer. Cancer screening is low in Sub-Saharan Africa. This study aims to provide information about cervical premalignant lesions frequency in Somalia.MethodsThe pathology results of cervicovaginal smear samples obtained from patients aged 25–65 years who applied to the gynecology outpatient clinic between October 5 and December 5, 2021 were analyzed retrospectively. SPSS 22.0 was used for the statistical analysis of the data.ResultAmong the 497 results, 63 premalignant lesions were detected. The rate of premalignant lesions (63/497) was found to be 12.3%. The most common premalignant lesion was atypical squamous cells of undetermined significance (ASC-US).ConclusionIn this study, the frequency of cervical premalignant lesions in Somalia was found to be higher than in the literature. Vaccination, screening, and early diagnosis are the most important components in the fight against cervical cancer. Access to vaccination, screening, and early diagnosis, which are the most important components in the fight against cervical cancer in Somalia, will be possible with the cooperation of the national health system and international organizations.

RIPOR2 Expression Decreased by HPV-16 E6 and E7 Oncoproteins: An Opportunity in the Search for Prognostic Biomarkers in Cervical Cancer.

High-risk human papillomavirus (HPV) infection is the main risk factor for cervical cancer (CC) development, where the continuous expression of E6 and E7 oncoproteins maintain the malignant phenotype. In Mexico, around 70% of CC cases are diagnosed in advanced stages, impacting the survival of patients. The aim of this work was to identify biomarkers affected by HPV-16 E6 and E7 oncoproteins that impact the prognosis of CC patients. Expression profiles dependent on E6 and E7 oncoproteins, as well as their relationship with biological processes and cellular signaling pathways, were analyzed in CC cells. A comparison among expression profiles of E6- and E7-expressing cells and that from a CC cohort obtained from The Cancer Genome Atlas (TCGA) demonstrated that the expression of 13 genes impacts the overall survival (OS). A multivariate analysis revealed that the downregulated expression of RIPOR2 was strongly associated with a worse OS. RIPOR2, including its transcriptional variants, were overwhelmingly depleted in E6- and E7-expressing cells. Finally, in a Mexican cohort, it was found that in premalignant cervical lesions, RIPOR2 expression decreases as the lesions progress; meanwhile, decreased RIPOR2 expression was also associated with a worse OS in CC patients.

Impact of HPV vaccination on HPV-related oral infections

BackgroundHuman papillomavirus (HPV) is one of the most common sexually transmitted infections worldwide. Although the efficacy of the HPV vaccine in preventing the development of cervical pre-malignant lesions has been well demonstrated, the efficacy of the HPV vaccine in preventing HPV infection in the upper respiratory tract has been poorly studied. MethodsIn the context of the IARC cohort study of two versus three doses of HPV vaccine in India, we compared the HPV type prevalence in the oral cavity of women vaccinated with three doses, two doses, or a single dose of quadrivalent HPV vaccine with that of unvaccinated women. A total of 997 oral samples, from 818 vaccinated women and 179 unvaccinated women, were collected at three study sites. All the participants were sexually active at the time of sample collection. ResultsThe age-standardized proportion (ASP) of HPV16/18 infections was 2.0 % (95 % CI, 1.0–3.0 %) in vaccinated women and 4.2 % (95 % CI, 1.2–7.2 %) in unvaccinated women. HPV16 was detected in 3.5 % of single-dose recipients, 1.2 % of two-dose recipients (days 1 and 180), and 1.5 % of three-dose recipients (days 1, 60, and 180), whereas 3.3 % of the unvaccinated women tested positive for HPV16. The same trend was observed for HPV18. DiscussionOur findings agree with those of previous studies on the efficacy of HPV vaccination in reducing oral HPV infections and provide indications that a single vaccine dose may be less efficient than two or three doses in preventing oral HPV infection.

The current status of cell-free human papillomavirus DNA as a biomarker in cervical cancer and other HPV-associated tumors: A review.

Tumor cells release fragments of their DNA into the circulation, so called cell-free tumor DNA (ctDNA), allowing for analysis of tumor DNA in a simple blood test, that is, liquid biopsy. Cervical cancer is one of the most common malignancies among women worldwide and high-risk human papillomavirus (HR-HPV) is the cause of the majority of cases. HR-HPV integrates into the host genome and is often present in multiple copies per cell and should thus also be released as ctDNA. Such ctHPV DNA is therefore a possible biomarker in cervical cancer. In this review, we first give a background on ctDNA in general and then a comprehensive review of studies on ctHPV DNA in cervical cancer and pre-malignant lesions that may develop in cervical cancer. Furthermore, studies on ctHPV DNA in other HPV related malignancies (eg,head-and-neck and anogenital cancers) are briefly reviewed. We conclude that detection of ctHPV DNA in plasma from patients with cervical cancer is feasible, although optimized protocols and ultra-sensitive techniques are required for sufficient sensitivity. Results from retrospective studies in both cervical cancer and other HPV-related malignancies suggests that ctHPV DNA is a promising prognostic biomarker, for example, for detecting relapses early. This paves the way for larger, preferably prospective studies investigating the clinical value of ctHPV DNA as a biomarker in cervical cancer. However, there are conflicting results whether ctHPV DNA can be found in blood from patients with pre-malignant lesions and further studies are needed to fully elucidate this question.

The Accuracy of Cytology, Colposcopy and Pathology in Evaluating Precancerous Cervical Lesions.

Introduction: Cervical cancer (CC) is the third most common cancer in the world, and Romania has the highest incidence of cervical cancer in Europe. The aim of this study was to evaluate the correlation between cytology, colposcopy, and pathology for the early detection of premalignant cervical lesions in a group of Romanian patients. Methods: This observational type 2 cohort study included 128 women from our unit, “Bucur” Maternity, who were referred for cervical cancer screening. Age, clinical diagnosis, cytology results, colposcopy impression, and biopsy results were considered. Colposcopy was performed by two experienced examiners. The pathological examination was performed by an experienced pathologist. Results: The cytology found high-grade squamous intraepithelial lesions in 60.9% of patients, low-grade squamous intraepithelial lesions in 28.1%, atypical squamous cells for which a high-grade lesion could not be excluded in 9.4%, and atypical squamous cells of undetermined significance, known as repeated LSIL, in 1.6%. The first evaluator identified low-grade lesions in 56.3%, high-grade lesions in 40.6%, and invasion in 3.1% of patients. The second evaluator identified low-grade lesions in 59.4%, high-grade lesions in 32.0%, and invasion in 8.6% of patients. The pathological exam identified low-grade lesions in 64.1%, high-grade lesions in 25%, and carcinoma in 14% of patients. The colposcopic accuracy was greater than the cytologic accuracy. Conclusions: Colposcopy remains an essential tool for the identification of cervical premalignant cancer cells. Standardization of the protocol provided an insignificant interobserver variability and can serve as support for further postgraduate teaching.

SOX2 expression in the pathogenesis of premalignant lesions of the uterine cervix: its histo-topographical distribution distinguishes between low- and high-grade CIN

SOX2 expression in high-grade cervical intraepithelial neoplasia (CIN3) and cervical squamous cell carcinoma is increased compared to that in the normal cervical epithelium. However, data on the expression and histological distribution of SOX2 in squamous epithelium during progression of CIN are largely lacking. We studied SOX2 expression throughout the epithelium in 53 cases of CIN1, 2, and 3. In general, SOX2 expression increased and expanded from basal/parabasal to the intermediate/superficial compartment during early stages of progression of CIN. An unexpected, specific expression pattern was found in areas classified as CIN2 and CIN3. This pattern was characterized by the absence or low expression of SOX2 in the basal/parabasal compartment and variable levels in the intermediate and superficial compartments. It was significantly associated with CIN3 (p = 0.009), not found in CIN1 and only seen in part of the CIN2 lesions. When the different patterns were correlated with the genetic make-up and presence of HPV, the CIN3-related pattern contained HPV-positive cells in the basal/parabasal cell compartment that were disomic. This is in contrast to the areas exhibiting the CIN1 and CIN2 related patterns, which frequently exhibited aneusomic cells. Based on their SOX2 localisation pattern, CIN1 and CIN2 could be delineated from CIN3. These data shed new light on the pathogenesis and dynamics of progression in premalignant cervical lesions, as well as on the target cells in the epithelium for HPV infection.

Circulating cell-free tumor human papillomavirus DNA is a promising biomarker in cervical cancer

ObjectivesTumor cells release fragments of their DNA into the circulation, so called cell-free tumor DNA (ctDNA) or liquid biopsy. Here, we analyze if cell-free human papillomavirus DNA (ctHPV DNA) is detectable before, during and after treatment, in patients with cervical cancer or pre-malignant lesions that may develop into cervical cancer, and whether ctHPV DNA levels were correlated to patient or tumor characteristics and outcome. Furthermore, total cell-free DNA load is studied using cfAlbumin DNA as a surrogate marker. Methods18 patients with locally advanced CC (LACC), 15 patients with early stage CC (ESCC) and 21 patients with pre-malignant lesions, all with verified HPV16, 18 or 45-positive lesions, were included. Pre- during- and post-treatment plasma were tested for HPV16, 18 & 45 and total cfDNA load using droplet digital PCR. ResultsctHPV DNA was found in 94.4% and 26.7% of pre-treatment plasma of patients with LACC and ESCC respectively, while all samples from patients with pre-malignant lesions were negative. Higher levels of ctHPV DNA were correlated to higher FIGO2018 stage. Patients with LACC and persistent ctHPV DNA at end-of-treatment had significantly worse progression-free survival (PFS) than patients who had cleared the ctHPV DNA (p = 0.007). Patients with total ctDNA-levels above median in pre-treatment plasma had a worse PFS (p = 0.026), compared to patients with total ctDNA-levels below median. ConclusionctHPV DNA is a promising prognostic biomarker in locally advanced cervical cancer that should be studied further for clinical use.

Proteases and HPV-Induced Carcinogenesis

Simple SummaryHuman papillomavirus (HPV) infection is a sexually transmitted disease with high prevalence worldwide. Although most HPV infections do not lead to cancer, some HPV types are correlated with the majority of cervical cancers, and with some anogenital and oropharyngeal cancers. Moreover, enzymes known as proteases play an essential role in the pathogenic process in HPV-induced carcinogenesis. This review highlights the role of proteases and recent epidemiological data regarding HPV-dependent carcinogenesis.Persistent infection with Human papillomavirus (HPV) is the main etiologic factor for pre-malignant and malignant cervical lesions. Moreover, HPV is also associated with oropharynx and other anogenital carcinomas. Cancer-causing HPV viruses classified as group 1 carcinogens include 12 HPV types, with HPV 16 and 18 being the most prevalent. High-risk HPVs express two oncoproteins, E6 and E7, the products of which are responsible for the inhibition of p53 and pRB proteins, respectively, in human keratinocytes and cellular immortalization. p53 and pRB are pleiotropic proteins that regulate the activity of several signaling pathways and gene expression. Among the important factors that are augmented in HPV-mediated carcinogenesis, proteases not only control processes involved in cellular carcinogenesis but also control the microenvironment. For instance, genetic polymorphisms of matrix metalloproteinase 1 (MMP-1) are associated with carcinoma invasiveness. Similarly, the serine protease inhibitors hepatocyte growth factor activator inhibitor-1 (HAI-1) and -2 (HAI-2) have been identified as prognostic markers for HPV-dependent cervical carcinomas. This review highlights the most crucial mechanisms involved in HPV-dependent carcinogenesis, and includes a section on the proteolytic cascades that are important for the progression of this disease and their impact on patient health, treatment, and survival.

Role of colposcopy in the management of women with abnormal cytology.

Cytology identifies the women who are at higher risk of harboring high-grade cervical premalignant lesions or invasive cancer. However, a diagnostic test such as colposcopy is crucial for women with abnormal cytology for localization of the abnormality, confirmation of diagnosis, and appropriate management. To standardize this subjective technique and to minimize the interobserver variations, Swede scoring system was introduced. The revised colposcopic nomenclature of the International Federation of Cervical Pathology and Colposcopy in 2011 included various normal and abnormal colposcopic findings and gives a description of colposcopic features which improves its accuracy over the colposcopic indices. There is consensus agreement that cytology indicative of high-grade lesions (ASC-H and HSIL in the Bethesda system) should engender immediate referral for colposcopy and biopsy. The management of women who have equivocal or borderline cytology of low-grade abnormalities (ASCUS/LSIL) is still under deliberation. It is generally agreed to have an HPV triage for women with equivocal cytology. Based on the latest recommendations, the current chapter provides an extensive overview of the role of colposcopy in the management of women with various abnormalities reported on Pap smear.

Cervical cancer in the Hauts-Bassins region of Burkina Faso: Results of a screening campaign by visual inspection with acetic acid (VIA screening in Burkina Faso).

This study was conducted to describe the distribution of precancerous and cancerous lesions of the cervix uteri, enumerated during a mass screening in Burkina Faso. We conducted a cross-sectional study involving 577 women aged 18 to 60 years, carried out from November 23 to December 19, 2013, in the city of Bobo-Dioulasso and in the rural commune of Bama. Regarding the screening results, 89 participants (15.4%) were positive for pre-malignant cervical lesions. Chi-square testing and logistic regression analyses were conducted to identify the likelihood of cervical pre-cancer lesion in the women. Participants less than 29 years old were approximately 3 times more likely to have cervical lesions than participants >39 years. Participants who were parous (1-3 deliveries) and multiparous (four or more deliveries) were approximately 4 times more likely to present with cervical lesions than nulliparous women. Access to screening services is low in the Bobo-Dioulasso region. Further research should be conducted to understand the incidence and distribution of cervical precancerous and cancerous lesions in Burkina Faso.

Alteration of Gene and miRNA Expression in Cervical Intraepithelial Neoplasia and Cervical Cancer

Background: Cervical cancer is one of the most common malignancies in women in terms of prevalence and mortality. Cervical cancer has some particularities that distinguish it from any other oncologic pathology: first, it is completely preventable by prompt detection of its precursor, cervical intraepithelial neoplasia (CIN); second, the Human Papillomavirus (HPV) infection is a known etiological agent; third, the mean age at diagnosis is much lower than in other oncologic conditions, as a consequence of the sexually-transmitted HPV. Methods: We evaluated the expression level of several long noncoding RNAs and a microRNA in samples from 30 patients with CIN, 9 with cervical cancer and 38 normal samples using qRT-PCR technology. Results: We observed higher expression levels for MEG3, DAPK1, MLH1 and MALAT1 in CIN samples than in normal samples, whereas TIMP3 and SOX1 had lower expression levels. For cancer samples, DAPK1, MLH1 and MALAT1 had higher expression, and MEG3, TIMP3 and SOX1 had lower expression when compared to normal samples. In the case of CIN versus cancer samples, only MEG3 gene showed a statistically significant difference. The expression of miR-205-5p was lower in both CIN and cancer samples compared to normal samples. Conclusion: Decreased MEG3 expression could be considered an alarm signal in the transition from a premalignant cervical lesion to invasive cancer, while altered expression levels of TIMP3, SOX1, MLH1, MALAT1 and miR-205-5p could serve as early biomarkers in the diagnosis of premalignant cervical lesions. Future studies, including a larger number of patients with CIN, will be of particular importance in validating these observations.