eMedicine Specialties > Obstetrics and Gynecology > General Gynecology
Colposcopy: Follow-up
Updated: Aug 12, 2008
Future and Controversies
The colposcope can also be helpful in evaluating lesions of the vagina or vulva. The vaginal epithelium is a nonkeratinizing squamous epithelium similar to that of the exocervix. Acetowhite changes and vascular patterns can be observed that are similar to those found on the cervical portio. Because vaginal lesions do not originate in metaplastic tissue, vascular patterns previously described are not diagnostically reliable. When premalignant changes are suspected, all acetowhite lesions should be biopsied. The vagina is more sensitive to pain than the cervix, so prebiopsy injection of local anesthesia should be considered.
The vulva is also a potential site for development of preinvasive disease. These tissues also can show acetowhite changes, but, because of the thickness of the epithelium and its keratin surface, acetic acid should be applied for a greater length of time and in a higher concentration (eg, 5%) to be effective in bringing about this change. Altered vascular patterns are uncommon on the vulva; but, when they are observed, biopsies should be performed liberally. Again, because of the sensitivity of these tissues, all biopsies should be obtained under local anesthetic.
Another use of the colposcope is in the evaluation of a victim of sexual assault. This has gained popularity, especially in the evaluation of children suspected of being assaulted. At low magnification, the colposcope can assist in identifying tissue trauma that might be too subtle to be detected by the naked eye. Careful, thorough, and gentle examination, especially of hymenal tissues, can usually be accomplished with minimal discomfort. Attached cameras for recording findings can be helpful from an evidentiary perspective.
The authors and editors of eMedicine gratefully acknowledge the contributions of previous authors Alissa Zuellig, BS; Bophal Hong, BS; Shironda Stewart, BS; and Michael P Grossman, MD to the development and writing of this article.
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Further Reading
Keywords
colposcopy, vagina, cervical cancer, colposcope, Papanicolaou test, Pap smear, human papillomavirus, HPV, transformation zone, TZ, dysplasia, acetic acid, acetowhite epithelium, endophytic lesions of the cervix, exophytic lesions of the cervix, cervical carcinoma, cervical dysplasia, Bethesda system, atypical squamous cell, ASC, atypical squamous cell of undetermined significance, ASCUS, ASCH, low-grade squamous intraepithelial neoplasia, LGSIL, high-grade squamous intraepithelial neoplasia, HGSIL, cervical lesions, cone biopsy of the cervix
Follow-up: Colposcopy