Reid's Colposcopic Index (RCI)Loading...MarginCondylomatous or micropapillary contour/indistinct borders/flocculated or feathered margins/jagged, angular lesions/satellite lesions, acetowhitening that extends beyond the transformation zone0Regular lesions with smooth, straight outlines/sharp peripheral margins+1Rolled, peeling edges/internal borders between areas of differing appearance+2ColorShiny, snow white color/indistinct acetowhitening, semi transparent rather than completely opaque0Shiny, off white/intermediate white+1Dull, oyster gray+2VesselsUniform, fine caliber/randomly arranged with poorly formed patterns/nondilated capillary loops/ill-defined areas of fine punctation or mosaic0Absence of surface vessels, following acetic acid soaking+1Definite punctuation or mosaicism/individual vessels dilated, arranged in sharply demarcated, well-defined patterns+2Iodine stainingPositive iodine uptake, producing a mahogany-brown color/Negative iodine uptake by an area that is recognizable as a low-grade lesion by above criteria (≤2/6)0Partial iodine uptake, variegated, tortoise shell appearance+1Negative staining of a lesion, which is a high-grade lesion by the above criteria (≥3/6)/mustard-yellow appearance+2