p16 and MIB1 improve the sensitivity and specificity of the diagnosis of high grade squamous intraepithelial lesions: Methodological issues in a report of 447 biopsies with consensus diagnosis and HPV HCII testing

2007 ◽  
Vol 107 (1) ◽  
pp. S233-S240 ◽  
Author(s):  
Dirk Van Niekerk ◽  
Martial Guillaud ◽  
Jasenka Matisic ◽  
John L. Benedet ◽  
J. Adrian Freeberg ◽  
...  
2020 ◽  
Author(s):  
hengzi Sun ◽  
Shuhong Li ◽  
Dongyan Cao ◽  
Jiaxin Yang ◽  
Peng Peng ◽  
...  

Abstract Background:Colposcopy was referred in cases with severe abnormalities in co-testing. However, approximately 60%-80% patients did not receive proper benefits. Although p16/Ki67 dual staining reduced the referral rate, its sensitivity and specificity need to be enhanced. Methods:The expression of p16, Ki-67, SMAD3, YAP1, RELA were evaluated inthe colposcopy referral population. Results:The sensitivity and specificity of p16+ combined with Ki-67+ for predicting CIN2+ were 62.1% and 89.5%, respectively. p16+ combined with YAP1+ and/or RELA+ provided a sensitivity and specificity of 70.9% and 89.5%, respectively, while 72.8% and 86.4% were achieved by p16+ combined with YAP1+ and/or SMAD3+ and/or RELA+. In HPV16/18+ and LSIL subgroups, the sensitivity and specificity of p16+ combined with Ki-67+ for predicting CIN2+ were 67.7% and 87.6%, respectively, for the former group and 58.6%, 88.8%, respectively, for the latter group, whereas those of RELA alone were 76.9% and 90.5%, respectively, and 82.8% and 92.1%, respectively. p16+, YAP1+/RELA+ showed a better performance for predicting CIN2+ with a better sensitivity (86.7% vs. 52.2%, p=0.028) and considerable specificity (86.7% vs. 90.0%, p=0.486) in the other HPV+ combined with ASCUS groupthan were achieved by p16+ combined with Ki-67+. RELA+ and the combination of p16 and RELA/YAP1 also provided the Max AUC area. Conclusions:Our study shows that RELA and the combination of p16 and RELA/YAP1 achieved better sensitivity and specificity for detecting morphologically CIN2+ lesions.


2015 ◽  
Vol 59 (2) ◽  
pp. 187-200 ◽  
Author(s):  
Ossama Tawfik ◽  
Marilyn Davis ◽  
Susan Dillon ◽  
Laila Tawfik ◽  
Francisco J. Diaz ◽  
...  

Objective: To date, the impact of digital imaging on routine cytology remains far from perfect. Cellblock (CB) preparations from Pap samples have been shown to be diagnostically valuable. We evaluated the validity of utilizing whole-slide imaging (WSI) prepared from Pap CBs as a screening tool. Study Design: A total of 1,110 CB slides prepared from residual Pap samples were analyzed - 563 normal, 282 atypical squamous cells of undetermined significance (ASCUS), 12 atypical squamous cells-cannot exclude high-grade squamous intraepithelial lesion, 188 low-grade squamous intraepithelial lesions (LSIL), 36 high-grade squamous intraepithelial lesions (HSIL), 25 atypical glandular cells of undetermined significance, 1 adenocarcinoma in situ, 2 invasive adenocarcinomas, and 1 squamous cell carcinoma. Virtual slides were obtained using the Aperio system. Test performance characteristics of liquid-based samples and WSI from CB samples were compared. Results: Average sensitivity and specificity of the five WSI reviewers was 58.3 and 85.1% for ASCUS, respectively, 54.1 and 93.9% for LSIL, and 51.8 and 98.8% for HSIL. Overall WSI sensitivity and specificity for detecting lesions was 82.1 and 86.2%, respectively. Agreement (kappa values) between WSI reviewers was 0.56 for ASCUS, 0.69 for LSIL, 0.67 for HSIL, and 0.74 for negative samples. Conclusions: WSI of CB preparations is a feasible method to achieve high-quality specimen preparations. It is as sensitive as liquid-based methods and appears to be highly specific for the detection of LSIL and HSIL.


2020 ◽  
Vol 154 (Supplement_1) ◽  
pp. S25-S26
Author(s):  
O I Afolayan-Oloye ◽  
P Zhang

Abstract Introduction/Objective Differentiating low-grade SIL from reactive changes on light microscopy has remained controversial. P16 immunostaining is widely accepted in high-grade SIL unlike in low-grade SIL. We focused on the use of p16 immunostaining in eliminating inaccurate diagnosis of low-grade SIL on light microscopy. Methods A retrospective study on 60 cervical biopsies results over a 2 year-period was conducted using 35 suspicious cases for low-grade SIL (bi-nucleation and some nuclear atypia) and 25 low suspicion cases (enlarged nuclei but nuclear atypia cannot differentiate from reactive changes). All cases were stained for p16, significant nuclear expression of p16 was determined as low- grade SIL. Results After p16 immunostaining, 30/35 (85%) cervical biopsies from the suspicious group were found to be truly positive for low-grade SIL while 5/35 (15%) biopsies negative for p16 immunostaining were regarded as reactive changes. In the low suspicious group, 7/25 (28%) were found to be positive for low-grade SIL and 18/25 (72%) biopsies were negative, favoring reactive changes. The overall percentage of all 60 biopsies that showed a changed diagnosis based on p16 immunostaining was 20% (5 were truly negative in the suspicious group and 7 were truly positive in the low suspicious group). Using a 2 x 2 table with p16 as a gold standard for all biopsies, sensitivity and specificity of light microscopy for low-grade SIL were only 81% and 78% respectively. Conclusion Our study showed that p16 immunostaining can also be utilized to eliminate inaccurate diagnosis of low- grade SIL up to 20% in cervical biopsies.


2007 ◽  
Vol 86 (1) ◽  
pp. 94-98 ◽  
Author(s):  
José Eleutério Jr ◽  
Paulo César Giraldo ◽  
Ana Katherine Gonçalves ◽  
Diane Isabelle Magno Cavalcante ◽  
Francisco Valdeci de Almeida Ferreira ◽  
...  

2016 ◽  
Vol 60 (5) ◽  
pp. 445-450 ◽  
Author(s):  
Yiang Hui ◽  
Katrine Hansen ◽  
Jayasimha Murthy ◽  
Danielle Chau ◽  
C. James Sung ◽  
...  

Objective: A vast majority of cervicovaginal intraepithelial lesions are caused by high-risk human papillomaviruses (HPVs). The Pap test has been the sole method used for the screening of cervicovaginal squamous intraepithelial lesions (SIL). Recently, the FDA approved an HPV-DNA assay as a method of primary screening. We report on a series of FDA-approved HPV-DNA test-negative SIL with HPV genotyping, using an alternative method on the corresponding surgical biopsy specimens. Study Design: A retrospective review identified cytology-positive HPV-negative cases over a 15-month period at a tertiary care gynecologic oncology institution. Corresponding biopsies were reviewed and genotyped for high-risk HPVs. Results: Of the 18,200 total cases, 17 patients meeting the study criteria were selected with 27 surgical specimens corresponding to their cytologic diagnoses. Four patients with high-grade lesions were identified, 3 of whom (75%) were positive for HPV. One of these 4 patients (25%) showed high-grade SIL on biopsies from 4 separate sites in the cervix and vagina. Multiviral HPV infections were frequent. Conclusions: We discuss the relevance of cotesting for screening cervical SILs and emphasize that false-negative results are possible with the FDA-approved HPV screening assay, also in patients with high-grade SIL. These cases may be detectable by cytologic examination and this suggests that the Pap test remains an important diagnostic tool.


2015 ◽  
Vol 1 ◽  
pp. 101-108 ◽  
Author(s):  
Naomi Jay ◽  
J. Michael Berry ◽  
Christine Miaskowski ◽  
Misha Cohen ◽  
Elizabeth Holly ◽  
...  

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