VIA procedure Ė Examination after application of 5% acetic acid Ė Normal features Ė Squamocolumnar junction (SCJ)
After application of acetic acid, the junction between the squamous epithelium and the columnar epithelium becomes prominent and easy to identify. It often appears as a distinct white line between the two types of epithelium.
The location of the SCJ in relation to the external os varies over a womanís life-cycle. The SCJ is easily identifiable when present at the external os or on the ectocervix.
If the SCJ is partially visible, then efforts must be made to visualize the SCJ in its entire 360į circumference using the manipulations described earlier.
In some women, the SCJ may not be completely visualized despite the VIA providerís best efforts, because the SCJ has receded into the endocervical canal. This usually happens in perimenopausal and postmenopausal women, in whom the cervix shrinks because of diminishing levels of estrogen in the body.