Cervical cytology: Difference between revisions

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Adequacy: Calculation
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==Adequacy==
==Adequacy==
Should always be stated, either as "Satisfactory" or "Unsatisfactory".
Adequacy should always be stated, either as "Satisfactory" or "Unsatisfactory". For estimating the number of cells, determine the following:
*The area of your field of view at high power (see the [[Evaluation]] chapter)
*The total size of the relevant area on the microscope slide.
*Look at 10 representative high power fields (HPFs) within that area, and calculate the average number of cells per high power field.
{|
|valign=center| Total number of cells = Average number of cells per HPF * || <u>Total size of area</u><br>HPF area
|}


Also state whether the endocervical/transformation zone is present or absent. Count an endocervical component as present if there are 10 or more endocervical or squamous metaplastic cells.<ref name="CibasDucatman">{{cite book | last=Cibas | first=Edmund S. | last2=Ducatman | first2=Barbara S. | title=Cytology : diagnostic principles and clinical correlates | publication-place=Philadelphia, PA | date=2021 | isbn=978-0-323-63637-7 | oclc=1138033641 | page=9}}</ref>
Also state whether the endocervical/transformation zone is present or absent. Count an endocervical component as present if there are 10 or more endocervical or squamous metaplastic cells.<ref name="CibasDucatman">{{cite book | last=Cibas | first=Edmund S. | last2=Ducatman | first2=Barbara S. | title=Cytology : diagnostic principles and clinical correlates | publication-place=Philadelphia, PA | date=2021 | isbn=978-0-323-63637-7 | oclc=1138033641 | page=9}}</ref>

Revision as of 19:32, 15 August 2022

Author: Mikael Häggström [note 1]

Adequacy

Adequacy should always be stated, either as "Satisfactory" or "Unsatisfactory". For estimating the number of cells, determine the following:

  • The area of your field of view at high power (see the Evaluation chapter)
  • The total size of the relevant area on the microscope slide.
  • Look at 10 representative high power fields (HPFs) within that area, and calculate the average number of cells per high power field.
Total number of cells = Average number of cells per HPF * Total size of area
HPF area

Also state whether the endocervical/transformation zone is present or absent. Count an endocervical component as present if there are 10 or more endocervical or squamous metaplastic cells.[1]

Very common findings

Main conditions to exclude or confirm

Squamous atypia, seen mainly as cells with increased nucleus/cytoplasm ratio, nuclear hyperchromasia and irregular nuclear outline.

Notes

  1. For a full list of contributors, see article history. Creators of images are attributed at the image description pages, seen by clicking on the images. See Patholines:Authorship for details.

Main page

References

  1. Cibas, Edmund S.; Ducatman, Barbara S. (2021). Cytology : diagnostic principles and clinical correlates . Philadelphia, PA. p. 9. ISBN 978-0-323-63637-7. OCLC 1138033641. 

Image sources