Related Experiment Video
Updated: May 22, 2026

Anterior High-Resolution Optical Coherence Tomography in the Diagnosis and Therapeutic Monitoring of Ocular Surface Squamous Neoplasia
Published on: August 9, 2024
[The new colposcopic signs--ridge sign and inner border]
1Onkogynekologické centrum, Gynekologicko-porodnická klinika VFN a 1. LF UK, Praha. jiri.slama@vfn.cz
Objective:
To conclude knowledge about new colposcopic signs--ridge sign and inner border.
Design:
Review article.
Setting:
Oncogynecological center, Department of Gynecology and Obstetrics, General Faculty Hospital and 1st Medical School of Charles University, Prague.
Methods And Results:
Recently updated colposcopic classification includes two new colposcopic signs--ridge sign and inner border. Both are mainly present in lesions associated with oncogenic human papillomaviruses infection. Ridge sign represents thick opaque acetowhite epithelium irregularly growing in the squamocolumnar junction as ledges. Inner border is a sharp acetowhite demarcation within a less opaque acetowhite area. The sensitivity and specificity for detection of underlying high-grade lesion is 33.1% and 93.1% in ridge sign and 20% and 97% in inner border sign respectively.
Conclusions:
Ridge sign and inner border are new colposcopic signs, which improve sensitivity and specificity of colposcopic examination.
More Related Videos
09:37Combining Reflectance Confocal Microscopy with Optical Coherence Tomography for Noninvasive Diagnosis of Skin Cancers via Image Acquisition
Published on: August 18, 2022
05:52Sentinel Lymph Node Mapping and Biopsy for Endometrial Cancer at Early Stage with Laparoscopy
Published on: August 19, 2021