HPV testing is an efficient management choice for women with inadequate liquid-based cytology in cervical cancer screening

Factors Associated with Unsatisfactory Pap Tests Among Sexually Active Trans Masculine Adults

Purpose: Unsatisfactory collection of cells during Papanicolaou (Pap) tests prevents the detection of cervical cancer and dysplasia. Prior research found that trans masculine (TM) individuals are significantly more likely than cisgender women to have an unsatisfactory Pap test. The purpose of this study was to identify factors that place some TM individuals at greater risk for an unsatisfactory Pap test than others. Methods: Between 2015 and 2016, 150 TM adults were enrolled in a cross-sectional survey assessing demographics, health characteristics, health care experiences, trauma history, and unsatisfactory Pap test history. Bivariate and multivariable logistic regression analyses conducted in 2020 examined associations between age, length of time on testosterone, smoking history, having to educate a provider about transgender people to receive appropriate care, anticipated health care stigma, post-traumatic stress disorder (PTSD) symptoms, and lifetime history of unsatisfactory Pap tests. Results: Of all participants, 20.2% had an unsatisfactory test in their lifetime, age ranged from 21 to 50 years, 55.1% used testosterone for 1 year or more, and 41.3% had PTSD symptoms. In the multivariable model, older age (adjusted odds ratio [AOR] = 1.15; 95% confidence interval (CI) = 1.04-1.27; p < 0.01), 1 year or more lifetime testosterone use (AOR = 3.51; 95% CI = 1.02-12.08; p = 0.046), and PTSD symptoms (AOR = 3.48; 95% CI = 1.10-11.00, p = 0.03) were significantly associated with increased odds of having an unsatisfactory Pap test. Conclusions: Older age, testosterone use, and PTSD symptoms are associated with lifetime unsatisfactory Pap tests among TM adults. Clinicians should assess TM patients' trauma and testosterone use history before Pap tests and utilize trauma-informed practices that facilitate the collection of adequate Pap samples.

Comparing Anal Cancer Screening Algorithms Using Cytology and HPV DNA Testing in Three High-risk Populations

BACKGROUND

Screening strategies for high-risk human papillomavirus (hrHPV)-associated anal cancer are evolving. This study compares the screening performance of anal cytology to hrHPV DNA testing and two novel cytology/hrHPV cotesting algorithms among three high-risk populations.

METHODS

Anal cytology, hrHPV DNA testing, and high-resolution anoscopy (HRA)-guided biopsy results were analyzed from 1,837 participants comprising 1,504 HIV-infected men who have sex with men (MSM), 155 HIV-uninfected MSM, and 178 HIV-infected women. Screening performance to detect histological high-grade squamous intraepithelial lesions (HSIL)/cancer was compared between four strategies with distinct HRA referral thresholds: cytology (ASCUS); hrHPV testing (any hrHPV+); algorithm A (benign cytology/HPV16/18+ or ASCUS/hrHPV+); and algorithm B (benign or ASCUS cytology/hrHPV+).

RESULTS

Histological HSIL/cancer was detected in 756 (41%) participants. Cytology alone had the lowest sensitivity (0.76-0.89) but the highest specificity (0.33-0.36) overall and for each subgroup. Algorithm B was the most sensitive strategy overall (0.97) and for MSM (HIV-infected 0.97; HIV-uninfected 1.00). For HIV-infected women, hrHPV testing and both algorithms yielded higher sensitivity than cytology (0.96, 0.98, and 0.96). Specificity was low for all strategies and subgroups (range 0.16-0.36).

CONCLUSIONS

Screening algorithms that incoporate cytology and hrHPV testing significantly increased sensitivity and further decreased specificity to detect anal precancer/cancer among high-risk populations.

HIV-Infected Patients With Anal Cancer Precursors: Clinicopathological Characteristics and Human Papillomavirus Subtype Distribution

BACKGROUND

People living with HIV have high rates of anal human papillomavirus infection and anal precancer/cancer.

OBJECTIVE

This study aims to: 1) determine human papillomavirus subtype distribution among people living with HIV with anal high-grade squamous intraepithelial lesions; 2) compare the clinicopathological characteristics of patients with anal high-grade squamous intraepithelial lesions by human papillomavirus 16 status; and 3) investigate high-risk human papillomavirus negative anal high-grade squamous intraepithelial lesion cases.

DESIGN

In this retrospective study, 700 people living with HIV who have biopsy-proven anal high-grade squamous intraepithelial lesions were reviewed for demographics, cytological diagnoses, and human papillomavirus testing results for human papillomavirus 16, 18, and 12 other high-risk types. For human papillomavirus-negative subjects, corresponding biopsies were genotyped by using real-time polymerase chain reaction.

SETTINGS

This study was conducted in a large urban HIV clinic system and major referral center for anal cancer screening.

PATIENTS

Median age was 46 years (range, 20-76). Ninety-one percent of the patients were men who have sex with men.

MAIN OUTCOME MEASURES

The primary outcome measure was the association between demographic variables and human papillomavirus 16 status.

RESULTS

Anal cytology was unsatisfactory (5%), benign (13%), atypical squamous cells of undetermined significance (35%), low-grade squamous intraepithelial lesion (36%), and high-grade squamous intraepithelial lesions (11%). Human papillomavirus cotesting results were negative (n = 38, 5%), human papillomavirus 16 (n = 303, 43%), human papillomavirus 18 (n = 78, 11%), or exclusively non-16/18 types (n = 281, 40%). Human papillomavirus 16 positivity was associated with ≥3 high-grade lesions and ≥ low-grade squamous intraepithelial lesion cytology (p < 0.001). Age, race/ethnicity, sex, smoking, CD4+ T-cell count, and HIV viral load did not differ by status of human papillomavirus 16 (p > 0.05). For human papillomavirus-negative cases, human papillomavirus genotyping of biopsies was positive for high-risk (n = 14, 36%) or possibly carcinogenic types (n = 12, 32%), or negative (n = 12, 32%).

LIMITATIONS

This was a retrospective data analysis, and it pooled the results for 12 high-risk human papillomavirus types rather than individual types.

CONCLUSIONS

Nearly all people living with HIV and anal high-grade squamous intraepithelial lesions test positive for high-risk human papillomavirus on anal swabs; negative results may be due to sampling error, L1-based polymerase chain reaction assay, or human papillomavirus types not captured by standard clinical assays. Patients who have human papillomavirus 16-positive anal high-grade squamous intraepithelial lesions are indistinguishable from others based on demographic and clinical characteristics, underscoring the potential role of human papillomavirus testing for anal cancer screening. See Video Abstract at http://links.lww.com/DCR/B208. PACIENTES PORTADORES DE VIH CON PRECURSORES DE CÁNCER DE ANO: CARACTERÍSTICAS CLINICOPATOLÓGICAS Y DISTRIBUCIÓN DEL SUBTIPO VPH: Los pacientes portadores de VIH tienen altas tasas de infección por VPH y alto riesgo de desarrolar lesiones precáncerosas / cáncerosas del ano.(1) Determinar la distribución del subtipo de VPH entre las personas portadoras de VIH con lesiones intraepiteliales escamosas anales de alto grado. (2) Comparar las características clinicopatológicas de pacientes con lesiones intraepiteliales escamosas anales de alto grado del subtipo VPH 16. (3) Investigar casos de lesiones intraepiteliales escamosas anales de alto grado negativas para el VPH de alto riesgo.Estudio retrospectivo sobre 700 personas portadoras de VIH con lesiones intraepiteliales escamosas anales de alto grado confirmadas por biopsia. Los datos fueron revisados para determinar información demográfica, diagnósticos citológicos y resultados de tipización en el VPH subtipos 16 y 18, y otros 12 tipos de alto riesgo. Para los individuos negativos al VPH, se analizó el genotipo en las biopsias correspondientes mediante test de PCR en tiempo real.Extenso sistema de clinicas urbanas tratando VIH y un importante centro de referencia para la detección del cáncer analla mediana de edad poblacional fue de 46 años (rango, 20-76). 91% eran hombres que tenían sexo con hombres.Asociación entre las variables demográficas y el estado del VPH subtipo16.la citología anal fue insatisfactoria (5%), benigna (13%), células escamosas atípicas de importancia indeterminada (35%), lesión intraepitelial escamosa de bajo grado (36%) y lesiones intraepiteliales escamosas de alto grado (11%). Los resultados de la prueba conjunta del VPH fueron negativos (n = 38, 5%), el virus del VPH subtipo 16 (n = 303, 43%), el VPH subtipo 18 (n = 78, 11%) o los subtipos exclusivamente no 16/18 (n = 281, 40%). La positividad del VPH subtipo 16 se encotraba asociado con ≥3 lesiones de alto grado y ≥ células escamosas atípicas en la prueba de citología de indeterminada importancia (p < 0.001). La edad, la raza / etnia, el sexo, el tabaquismo, el recuento de células T CD4 + y la carga viral del VIH no difirieron según el estado del VPH subtipo 16 (p > 0.05). Para los casos negativos al VPH, el genotipo del virus del papiloma humano de las biopsias fue positivo para los tipos de alto riesgo (n = 14, 36%) o posiblemente carcinogénicos (n = 12, 32%), o negativo (n = 12, 32%).Análisis de datos retrospectivos, con resultados agrupados para 12 tipos de VPH de alto riesgo en lugar de tipos individuales.Casi todas las personas portadoras de VIH con lesiones intraepiteliales escamosas anales de alto grado dan positivo para el VPH de alto riesgo al muestreo de hisopos anales; Los resultados negativos pueden deberse a un error en el muestreo y al análisis de PCR basado en L1 o subtipos de VPH no obtenidos en los ensayos clínicos estándar. Los pacientes con lesiones intraepiteliales escamosas anales de alto grado positivas para el VPH subtipo 16 no son identificables de los demás, en función de las características demográficas y clínicas, lo que minimiza el rol potencial de la prueba del VPH en la detección del cáncer anal. Consulte Video Resumen en http://links.lww.com/DCR/B208. (Traducción-Dr. Xavier Delgadillo).

A Low-Cost HPV Immunochromatographic Assay to Detect High-Grade Cervical Intraepithelial Neoplasia

Objective

To evaluate the reproducibility and accuracy of the HPV16/18-E6 test.

Methods

The study population was comprised of 448 women with a previously abnormal Pap who were referred to the Barretos Cancer Hospital (Brazil) for diagnosis and treatment. Two cervical samples were collected immediately before colposcopy, one for the hr-HPV-DNA test and cytology and the other for the HPV16/18-E6 test using high-affinity monoclonal antibodies (mAb). Women with a histologic diagnosis of cervical intraepithelial neoplasia grade 2 or 3 were considered to be positive cases. Different strategies using a combination of screening methods (HPV-DNA) and triage tests (cytology and HPV16/18-E6) were also examined and compared.

Results

The HPV16/18-E6 test exhibited a lower positivity rate compared with the HPV-DNA test (19.0% vs. 29.3%, p<0.001) and a moderate/high agreement (kappa = 0.68, 95%CI: 0.60–0.75). It also exhibited a significantly lower sensitivity for CIN2+ and CIN3+ detection compared to the HPV-DNA test and a significantly higher specificity. The HPV16/18-E6 test was no different from cytology in terms of sensitivity, but it exhibited a significantly higher specificity in comparison to ASCH+. A triage test after HPV-DNA detection using the HPV16/18-E6 test exhibited a significantly higher specificity compared with a triage test of ASCH+ to CIN2+ (91.8% vs. 87.4%, p = 0.04) and CIN3+ (88.6% vs. 84.0%, p = 0.05).

Conclusion

The HPV16/18-E6 test exhibited moderate/high agreement with the HPV-DNA test but lower sensitivity and higher specificity for the detection of CIN2+ and CIN3+. In addition, its performance was quite similar to cytology, but because of the structural design addressed for the detection of HPV16/18-E6 protein, the test can miss some CIN2/3+ lesions caused by other high-risk HPV types.

Squamous cell carcinoma of the cervix: a cytology-histology-human papillomavirus correlation in clinical practice

CONTEXT

Cervical cancer mortality has declined by 74% in the United States since the implementation of the Papanicolaou (Pap) test. Nevertheless, more than 12,000 US women annually develop cervical cancer, and squamous cell carcinoma (SqCa) remains the predominant cervical malignancy.

OBJECTIVE

To evaluate screening techniques used in the detection of SqCa of the cervix and provide insights regarding which technique(s) is (are) most efficacious in our study population.

DESIGN

We retrospectively reviewed all available cytologic, human papillomavirus (HPV), and histologic malignancy burden data from patients diagnosed with SqCa. The clinical data were collected from 2 geographically and socioeconomically diverse hospital systems. Cases in which identified patients had a Pap test with a negative result/unsatisfactory specimen within 5 years of SqCa tissue diagnosis were considered Pap test screening failures. Cases in which patients were diagnosed with HPV-negative SqCa were considered HPV screening failures.

RESULTS

Eighty-eight cases (patients' ages ranging from 19 to 73 years) were identified. Of those, cytologic history was available for 64 cases present in our electronic medical history record. Three cases were cytology screening failures (one being an unsatisfactory specimen) and 3 cases were HPV screening failures (one being the cytologic unsatisfactory case). Although measuring sensitivity in practice has limitations, we calculated the SqCa detection sensitivity at 95.3% by Pap test alone and 97% when HPV DNA testing was incorporated.

CONCLUSIONS

Our results highlight the necessity of combining Pap and HPV testing. Although the number of cases identified is relatively small, our data suggest detection failures will decrease as the practice of combining HPV and Pap testing increases.

Exploration of treatment strategies for normal cytology smears with reactive cellular changes

OBJECTIVE

To evaluate the use of high-risk humanpapillomavirus (HR-HPV) DNA testing in women who have normal cytology result with reactive cellular changes to identify high risk patients of developing precancerous cervical lesions and cervical cancer.

STUDY DESIGN

Outpatient patients with normal liquid-based cytology (LCT) results showing reactive cellular changes (case group, n=1085) and normal LCT without reactive cellular changes (control group, n=1085) were recruited from cervical clinics at the International Peace Maternity & Child Health Hospital from January 2012 to December 2013. The HPV status and cervical biopsy pathology results were analyzed.

RESULTS

The HR-HPV positive rate of the case group (598/1085) was higher than that of the control group (163/1085) (P<0.001). HR-HPV prevalence among CIN1, CIN2, CIN3 and cervical cancer was 73%, 87%, 100%, and 100% respectively (P<0.05). In patients with positive HR-HPV results, more CIN2+ were found significantly in case group (37/598) than those in control group (3/163), P=0.027. The sensitivity of diagnosis of CIN2+ lesions by HR-HPV testing was 92.5%, the specificity was 36%, the positive predicted value was 8.6%, and the negative predictive value was 98.6%. The incidence of CIN2+ lesions was not different among different age groups (P>0.05).

CONCLUSION

Reactive cellular changes in normal cervical smears should be further investigated. HR-HPV testing could be used as an effective triage in cases of reactive cellular changes. Colposcopy is recommended for those cases showing reactive cellular changes combined with HR-HPV positivity to reduce the risk of failure to diagnose cervical cancer and precancerous lesions.

Female-to-male patients have high prevalence of unsatisfactory Paps compared to non-transgender females: implications for cervical cancer screening

BACKGROUND

Little is known about whether and how screening for cancers of natal reproductive structures, including cervical cancer, in female-to-male (FTM) transgender individuals differs from cancer screening among non-transgender females.

OBJECTIVE

To investigate anecdotal reports from clinicians of high rates of inadequate Papanicolaou (Pap) tests among transgender men.

DESIGN

Results of Pap tests performed on 233 FTM and 3,625 female patients at an urban community health center between 2006 and 2012 were extracted from an electronic medical record.

KEY RESULTS

Compared to female patients, FTM patients were more likely to have an inadequate Pap, with prevalence of inadequate samples 8.3 times higher among tests of FTM patients (10.8% vs. 1.3% of tests). FTM patients had over ten times higher odds of having an inadequate Pap after adjusting for age, race, and body mass index (AOR = 10.77, 95% CI = 6.83, 16.83). When years on testosterone therapy was added to the model, the relationship between transgender identity and Pap inadequacy was attenuated, but remained strongly associated (AOR = 6.01, 95% CI = 3.00, 11.50), and time on testosterone was also associated (AOR = 1.19, 95% CI 1.04, 1.36). FTM patients were more likely than females to have had multiple inadequate tests, and had longer latency to follow-up testing.

CONCLUSIONS

The high unsatisfactory sample prevalence among FTM patients is likely due to a combination of physical changes induced by testosterone therapy and provider/patient discomfort with the exam. Clinicians should receive training in increasing comfort for FTM patients during the exam. FTM patients should be alerted that high rates of inadequate screening may require follow-up testing. Alternatives to repeated Pap testing, such as cytologic reprocessing of inadequate samples or primary human papillomavirus (HPV) DNA screening, should be studied for efficacy and acceptability among FTM patients.