MATERIALS AND METHODS The Modified Reid Colposcopic Index (RCI) * Colposcopic Signs Zero Point Colour Low-intensity acetowhitening
(not completely opaque); indistinct acetowhitening
; transparent or translucent acetowhitening
Acetowhitening on endocervical polyps, nabothian cysts
Prominent white line like acetowhitening of the squamous junction
The aims of this study are to correlate the colposcopic diagnosis to the actual histopathologic diagnosis, and to determine the accuracy, sensitivity and specificity of acetowhitening in distinguishing premalignant and malignant lesions of the cervix.
This reaction is known as acetowhitening (International Agency for Research on Cancer, 2015).
We also determined the sensitivity and specificity of acetowhitening in distinguishing premalignant and malignant lesions of the cervix.
may be due to many causes other than dysplastic epithelium.
Many expert colposcopists state that the colposcopic presence of invasive carcinoma in pregnancy is difficult to differentiate from the normal changes of pregnancy,[9,31] even when classic acetowhitening
, vascular patterns, and borders of lesions are considered.
ImageSense is a tool for displaying areas of acetowhitening
by producing a digital output depicting the color differences of the cervix before and after the application of acetic acid during a typical colposcopic exam.
Table 1: Reids modified index score Margin Indistinct acetowhite, Regular lesions Rolled, flocculated or with smooth peeling edges feathered margins, straight outlines angular jagged lesions, satellite lesions that extend beyond the TZ zone Color Shiny, snow white Shiny gray Dull oyster color, indistinct (Intermediate white (dense acetowhitening
shade) opaque white) Vessels Fine caliber vessels, Absent vessels Punctations, poorly formed patterns mosaicism Iodine +ve/ minor negativity Partial uptake -ve Reids index: >2 is considered as positive on colposcopy.
The index considers four colposcopic signs: lesion margin, color of acetowhitening, blood vessels, and iodine staining.
The four colposcopic signs of lesion margin, color of acetowhitening, vessels within the lesion, and iodine staining are divided into three objective categories, which include lesion features characteristic of various specific levels of premalignant disease.