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Published byAnthony Crawford Modified over 9 years ago
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Sample Taker Training Cervical Cytology & Management of Abnormalities
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Cervical Cytology Results Negative Negative with infection Unsatisfactory Abnormal
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Types of Cells Seen
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Mature Cell Pattern Pre-menopause HRT Oestrogen cream Tamoxifen Obese women
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Immature Cell Pattern – Oestrogen Deficient Post menopausal Post-natal Depoprovera
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Evidence of Transformation Zone Sampling Endocervical Cells and/or Metaplastic Cells
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Background Blood Cells Polymorphs Red Blood Cells A lot of the blood is removed during processing but occasionally may be noticeable in the background of the sample
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Endometrial Cells These come from the womb lining May be shed during menstruation together with blood
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Late Menstrual Cycle Cells break up & some detail is lost
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Best time to take a smear? Menstruation – no (Days 1-5) Proliferative phase – OK Ovulation – OK Avoid the later days of the cycle if possible
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Infections Candida Trichomonas (TV) Herpes Rarely worm eggs may be seen = contaminant
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Unsatisfactory Samples Reason for unsatisfactory given in report –May help when taking repeat sample e.g. treatment of infection or topical oestrogen treatment Repeat in 3 months (minimum) After 3 unsatisfactory samples – refer to colposcopy
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Abnormal Results
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Cervical Abnormalities May be squamous or glandular in origin Non-cervical abnormalities including metastatic cancer may be seen (rare)
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Abnormalities That May Be Seen On Cervical Samples Squamous Abnormalities - CIN (Cervical Intraepithelial Neoplasia) Endocervical Abnormalities (Glandular Neoplasia) Glandular Neoplasia (non-cervical) – cells may shed but NOT directly sampled
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Squamous Dyskaryosis Cytological term meaning abnormal nucleus
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Progression of CIN Normal Cells Low grade dyskaryosis Borderline changes Moderate dyskaryosis Severe dyskaryosis Cancer Treatment Normal If left untreated (36%) HPV / Smoking etc.
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Squamous Abnormalities Borderline Changes Mild dyskaryosis Moderate dyskaryosis Severe Dyskaryosis Severe/?invasive carcinoma Low Grade High Grade
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Borderline Changes Minor changes seen but not dyskaryotic
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CIN 1CIN 2CIN 3 mildmoderateseverenormal
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CIN1 CIN2 CIN3 (in a crypt) CANCER MILD DYSK MODERATE SEVERE SEV/?INV Basement membrane
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Cervical Cancer - Squamous
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Management Low grade High grade Severe dyskaryosis / ?invasion HPV test to decide management Colposcopy referral URGENT colposcopy referral
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Glandular Abnormalities That May Be Seen On Cervical Samples Endocervical Abnormalities (Glandular Neoplasia) Glandular Neoplasia (non-cervical) – cells may shed but NOT directly sampled
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Glandular Abnormalities Borderline Changes ?Glandular Neoplasia (Cervix) ?Glandular Neoplasia (Other) HPV Test to decide management Urgent referral to colposcopy Urgent referral to gynae
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Do not delay referrals if clinical symptoms A negative cervical sample does NOT exclude a non-cervical abnormality e.g. womb cancer, ovarian cancer Post menopausal bleeding – refer to gynae If cervix looks suspicious refer to colposcopy Don’t wait for cytology result
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Malignant looking cervix
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Summary of Management Low grade abnormalities HPV test High grade dyskaryosis Colposcopy Glandular abnormalities Cervical Non-cervical +ve -ve Routine Recall Gynae
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Early Repeat Tests If HPV testing is not performed early repeat tests may be requested. –Repeat interval indicated on report –Patient recalled by letter
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Early Repeat Samples - HPV Test NOT Performed Low grade abnormalities –6 or 12 month repeat samples (3 negative results before return to routine recall) High grade abnormalities after treatment –12 month repeat samples (10 annual repeats before return to routine recall)
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Management after Hysterectomy NOT followed up by the CERVICAL screening programme – cease recall –Follow up is the responsibility of the Gynaecologist
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