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Full-Text Articles in Medicine and Health Sciences
P16 Ink4a Immunocytochemistry On Cell Blocks As An Adjunct To Cervical Cytology: Potential Reflex Testing On Specially Prepared Cell Blocks From Residual Liquid-Based Cytology Specimens, Vinod B. Shidham, Ravi Mehrotra, George Varsegi, Krista L. D'Amore, Bryan Hunt, Raj Narayan
P16 Ink4a Immunocytochemistry On Cell Blocks As An Adjunct To Cervical Cytology: Potential Reflex Testing On Specially Prepared Cell Blocks From Residual Liquid-Based Cytology Specimens, Vinod B. Shidham, Ravi Mehrotra, George Varsegi, Krista L. D'Amore, Bryan Hunt, Raj Narayan
Department of Pathology
Background: p16 INK4a (p16) is a well-recognized surrogate molecular marker for human papilloma virus (HPV) related squamous dysplasia. Our hypothesis is that the invasive interventions and related morbidities could be avoided by objective stratification of positive cytologic interpretations by p16 immunostaining of cell block sections of cytology specimens.
Materials and Methods: Nuclear immunoreactivity for p16 was evaluated in cell block sections in 133 adequate cases [20 negative for intraepithelial lesion or malignancy, 28 high-grade squamous intraepithelial lesion (HSIL), 50 low-grade squamous intraepithelial lesion (LSIL), 21 atypical squamous cells, cannot exclude HSIL (ASC-H), and 14 atypical squamous cells of undetermined significance …