diagnosis of carcinoma cervix
DESCRIPTION
carcinoma cervix evaluationTRANSCRIPT
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Evaluation of carcinoma
cervixTreatment
of dysplasias
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George Papanicolaou
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CERVICAL CYTOLOGY: PAP TEST
• AMERICAN CANCER SOCIETY
recommendation
Screening should begin at the age of 21
Or within 3 years of onset of sexual activity
Stop at age of 70,if no abnormal result in past
10 years
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• AMERICAN COLLEGE OF OBSTETRICIANS AND
GYNECOLOGISTS recommendations states
Women younger than the age of 30 should
undergo screening yearly
Those older than the age of 30 can extend
screening their screening interval to 2 to 3
years
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• US FOOD AND DRUG ADMINISTRATION approved
HPV DNA testing combined with cervical cytology as a screening technique for women older than age 30
When results of both tests are negative,does not have to be retested for 3 years
The negative predictive value of a double negative test exceeds 99%
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How PAP test to be done???
• Patient in dorsal position• Labia minora parted• Speculum introduced• Cervix exposed• Squamocolumnar junction scraped with
spatula by rotating all around• Spread on slide and immediate fixation• Stained with papanicolaou• Presence of endocervical cells: satisfactory
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NORMAL
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Atypical Squamous Cells
• 10% to 20% incidence of CIN 1
• 3% to 5% risk for CIN 2 or 3
• Repeat pap test every 4 to 6 months with
referral for colposcopy
• Immediate colposcopy
• HPV testing
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Low Grade Squamous Intraepithelial Lesions
• 75% of the patients have CIN,of these 20%
being CIN 2 or 3
• Colposcopy done to evaluate a single LSIL
result
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LSIL
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High Grade Squamous Intraepithelial Lesions
• Should undergo colposcopy and directed
biopsy
15-30% false negativity
Sensitivity 50-60% and specificity 95-98%
• Post menopausal women: indrawing of
SCJ,dry vagina,poor exfoliation
• Estrogen cream 10 days
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HSIL
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LIQUID BASED CTYOLOGY
• Plastic spatula placed in liquid fixative• Remove blood,mucus and inflammatory
cells
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• HPV DNA: hybridization (HYBRID CAPTURE
II) or PCR, 88% sensitive
• ENDOCERVICAL CURETTAGE:
scraping of mucus membrane by endocervical
brush or curretage
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COLPOSCOPY• Binocular stereoscope giving 10-20 times
magnificationTo study cervix when pap smear detect
abnormal cellsTo locate the abnormal areas and take biopsyConservative surgery under colposcopic
guidenceFollow up
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HINSELMANN
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• Visual inspection of acetowhite areas;
• Applying 5% acetic acid
• Acid coagulates protein of nucleus and
cytoplasm and makes the protein opaque
and white
• Dull white plaque with faint border: LSIL
• Thick plaque with sharp border: HSIL
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Normal cervix Acetowhite areas
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Abnormal areas
• Punctation: Dilated capillaries terminating on the surface appear from the ends as a collection of dots
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• Mosaic: terminal capillaries surrounding roughly circular or polygonal shaped blocks of AW epithelium crowded together
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• Leukoplakia:
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• Atypical vascular pattern: looped vessels,branching vessels,reticular vessels
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Cone biopsy• Diagnostic and therapeutic
• Large abnormalities,inner wall receded into
cervical canal,SCJ not visible
Cold knife technique under GA
Large loop excision of transformation zone
Laser excision
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Treatment of dysplasia and CIN
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CIN 1
• Evaluate every 6 months
• With pap test, HPV DNA
If lesion progress or persist for 2 years
Ablative treatment
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CIN 2 and 3
• Require treatment
• Loop electrosurgical excision procedure
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Ablative therapy is appropriate when
• No evidence of microinvasion or invasive
cancer
• Lesion located on ectocervix
• No involvement of the endocervix with high
grade dysplasia
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CRYOTHERAPY• Destroy surface
epithelium by
crystallization of
intracellular fluid
• Freeze thaw freeze
technique over 9
minutes
• CO2(-65oc), nitrous oxide(-89oc)
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Applicable only
• CIN 1 and 2
• Small lesion
• Ectocervical location
• Negative endocervical sample
• No endocervical gland involvement
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Advantages:
• Least painful,cheap,best tolerated and safe
Disadvantages:
• Discharge,infection,bleeding,stenosis
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• LASER ABLATION: expensive,special training required
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LEEP• Low voltage diathermy
o Loop advanced lateral to lesion
o When required depth reached
o Loop taken across to opposite side
o Cone of tissue removed
• Cutting d/t steam envelope developing at the
interface b/w wire loop and tissue
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• Disadvantages: hemorrhage,stenosis,preterm labour
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Conization• Entire outer margin and endocervical lining
short of internal os Bleeding, Sepsis, Stenosis, Abortion,
Preterm labourIndications• Limits of lesion not visible• SCJ not seen• ECC finding positive for CIN 2 and 3• Lack of correlation• Microinvasion is suspected
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Hysterectomy(not indicated)
• Older and parous women
• Poor compliance with follow up
• A/w fibroid, DUB, prolapse
• If micro invasion exist
• Recurrance
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FIGO staging of carcinoma cervix based on:
• Biopsy• Colposcopy• Endocervical curettage• Conization• Hysteroscopy• Cystoscopy• Proctoscopy• Intravenous urography• Xray chest and skeleton
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Thank you