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Difference between revisions of "Cytopathology"
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→Adequacy of specimens
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==Adequacy of specimens== | ==Adequacy of specimens== | ||
Standards are lacking for most types of specimens. A generally accepted standard is established only for cervical cytology specimens. | Standards are lacking for most types of specimens. A generally accepted standard is established only for cervical cytology specimens. | ||
===Non-gynecologic=== | |||
Standards (UHN) for non-gyne specimens:<ref>UHN PCY50001.08 P.11.</ref> | Standards (UHN) for non-gyne specimens:<ref>UHN PCY50001.08 P.11.</ref> | ||
*Breast: >= 6 cell groups (6 cells/cluster). | *Breast: >= 6 cell groups (6 cells/cluster). | ||
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*Sputum: >= 10 pulmonary macrophages. | *Sputum: >= 10 pulmonary macrophages. | ||
===Gynecologic=== | |||
There is a generally accepted standard for cervical (liquid-based) cytology specimens:<ref>UHN PCY50001.08 P.10.</ref> | There is a generally accepted standard for cervical (liquid-based) cytology specimens:<ref>UHN PCY50001.08 P.10.</ref> | ||
*>5000 squamous cells/slide, if no abnormality is present. | *>5000 squamous cells/slide, if no abnormality is present. | ||
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*The standard for conventional pap smears is: 8000-12000 squamous cells/slide.<ref>GR. 4 February 2010.</ref> | *The standard for conventional pap smears is: 8000-12000 squamous cells/slide.<ref>GR. 4 February 2010.</ref> | ||
===Transformation zone (TZ)=== | ====Transformation zone (TZ)==== | ||
The presence of the TZ should be commented on:<ref>GR. 4 February 2010.</ref> | The presence of the TZ should be commented on:<ref>GR. 4 February 2010.</ref> | ||
*An adequate TZ is 10 cells - endocervical cells ''or'' squamous metaplastic cells (per Bethesda). | *An adequate TZ is 10 cells - endocervical cells ''or'' squamous metaplastic cells (per Bethesda). | ||