Victorian Cytology Service Lab
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Grey Cross Taking a Pap smear
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+. The Squamo-Columar Junction ||

General
  • Using a pencil label the slide with the woman's surname, given name and D.O.B.

  • Complete the request form, paying particular attention to the woman’s personal identification details.

  • Lubricate the speculum with warm water, not with creams or jellies.

  • Visualise the cervix.

Spatula

  • Place the end of the spatula in the cervical os, as shown in the diagram. 

  • Rotate the spatula twice through 360° keeping the shoulder of the spatula in contact with the ectocervix.

  • Hold the slide by the frosted end and smear both sides of the spatula onto one half of the slide, then quickly obtain the brush sample.

Endocervical Brush

  • Rotate the endocervical brush gently in the endocervical canal (through one quarter rotation only), leaving the lower three rows of bristles visible.

  • Remove the brush and roll it quickly but gently onto the unused half of the slide.

    Do not use an endocervical brush if the woman is pregnant.
CERVEX SAMPLER
  • Place the tip of the Cervex Sampler in the endocervical canal as shown in the diagram.

  • Rotate several times, keeping the bristles in contact with the ectocervix.

  • Hold the slide by the frosted end and sweep one side of the Sampler down the slide. Quickly turn the Sampler over and repeat as illustrated.
  • Always ensure you sample the
    squamo-columnar junction. If
    there is a large eversion, take care to sample the periphery of the eversion with the spatula or Sampler.

What Next?

  • Immediately spray the whole of the slide with fixative from a distance of at least 25cm (10 inches).
  • Allow to dry. Place slide in the slide carrier. Put the slide carrier and the request form in the plastic bag and send to VCS.

 


THE SQUAMO-COLUMNAR JUNCTION

The Squamo-Columar Junction – the area to sample when taking a smear
The vagina is lined by multi-layered squamous cell epithelium (S1), whereas the endocervix is lined with single-cell mucus-producing columnar epithelium (G). The columnar epithelium meets the squamous epithelium at the squamo-columnar junction (SCJ).

During the normal course of a woman’s life the columnar epithelium changes or transforms into squamous epithelium: this area is thus known as the transformation zone (TZ—here illustrated as S2). It is at the TZ that squamous cell carcinoma of the cervix is believed to arise. This is therefore the area to be targeted when taking a Pap smear.



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