Sir Some References

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4259954/

Image-guided radiotherapy for cervix cancer: high-tech external beam therapy versus high-tech brachytherapy.

Georg D1, Kirisits C, Hillbrand M, Dimopoulos J, Pötter R.

http://www.hrsa.gov/quality/toolbox/508pdfs/cervicalcancerscreening.pdf

Cervical cancer is staged clinically. That is, it is assessed by direct visual inspection of the cervix and by palpation by digital pelvic examination and then also by some broad clinical markers of kidney function or other organs being compromised. If you google search for "cervical dysplasia picture atlas" who should find many published books. If you are talking about benchmark for Cervical cancer in Cat Scan or MRI imaging I'm not aware if these have been assembled into an atlas but a radiology text might be a good place to start.

If images are to see how it looks visually or on colposcopy... can go on images on Bing or Google, u would find many images as you see it through speculum with naked eye examination in case of an overt lesion

check this:

www.asccp.org