management of abnormal smears - hksccp notes/colpo workshop...management of abnormal smears • 2001...
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Management of Abnormal
Smears
9 October 2010
Dr TC Pun
Honorary Associate Professor
Dept of Obstetrics & Gynaecology
The University of Hong Kong
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Management of Abnormal Smears
• 2001 Consensus Guidelines for the Management of Women with Cervical Cytological Abnormalities(Wright et al JAMA 2002;287:2120-29)
• ACOG Committee Opinion No. 330(Obstet Gynecol 2006;107:963-8)
• 2006 Consensus Guidelines for the Management of Women with abnormal Cervical Cancer screening tests(Wright et al AJOG 2007;346-55)
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ASC-US
• Reflex HPV DNA testing – refer for colposcopy if
positive; if negative, repeat smear at 12 months
• Repeat smear at 4-6 months and refer for
colposcopy if abnormality persists; return to
routine screening after 2 repeat negative
• (immediate colposcopy – if negative, repeat
smear in at 12 months)
• Colposcopy service standard: should be seen
within 12 weeks
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Action Colposcopy
service
standard
ASC-H, LSIL Refer for
colposcopy
Seen within 12
weeks
HSIL Refer for
colposcopy
Seen within 6
weeks
Invasive cancer Biopsy if frank
growth;
otherwise early
referral for
colposcopy
Seen within 2
weeks
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Abnormal glandular cells
• Can perform endocervical sampling
• Refer for colposcopy
• Colposcopy service standard: seen within
12 weeks
• AGC-endometrial cells – endometrial
sampling first
• (AGC-favor neoplasia, AIS – early referral
for colposcopy)
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Management of Abnormal Smears
• Special circumstances – postmenopausal
women, pregnant women, adolescents
• Endometrial cells
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Thank you
Dr TC Pun
Honorary Associate Professor
Dept of Obstetrics & Gynaecology
The University of Hong Kong
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Management of Abnormal Smears
• Cervical cytology screening. ACOG
Practice Bulletin No. 109(Obstet Gynecol
2009;114:1409-1420)
• Cervical cancer in adolescents: screening,
evaluation, and management. ACOG
Committee Opinion No. 463(Obstet
Gynecol 2010;469-472)
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(Sawaya 2010 NEJM 361:2503-5)
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• An adolescent with a history of normal
cytologic screening in the past should not
be rescreened until age 21 years
• If an adolescent has had a Pap test result
of ASC-US or LSIL or CIN I histology in
the past, but has had 2 subsequent normal
Pap test results, rescreening can be
delayed until age 21 years
(ACOG Committee Opinion 463)
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Management of Abnormal Smears
• Guidelines
• Endometrial cells
• Smear test specimen adequacy
• Infections in cervical smear
• Calling patient back
• Other issues
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Endometrial cells
After menopause Investigation recommended
>=40 Interpret the smear result
together with the clinical
findings to determine the
management
<40 Treat as normal
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Management of cervical smears
showing endometrial cells • Follow up by repeat cervical cytology is
not appropriate
• Endometrial cells in keeping with the stage of the cycle – no need for further investigation
• Endometrial cells not in keeping with stage of the cycle – no need for further investigation in young women, but may require assessment in older women
Jordan et al 2008 Cytopathology 19:342-54
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• Endometrial cells in women with an IUD – no
need for further investigation
• Normal appearing endometrial cells in a
postmenopausal woman – always warrant
further assessment even if the woman is using
oestrogen replacement therapy. The minimum
assessment should be a vaginal ultrasound to
assess the endometrial thickness
• Atypical endometrial cells or cytological findings
suggestive of endometrial adenocarcinoma –
ultrasound, hysteroscopy and biopsy or
diagnostic curettage
Jordan et al 2008 Cytopathology 19:342-54
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Other than during the first half of the
menstrual cycle, the presence of
spontaneously exfoliated endometrial cells
in the Pap smear is abnormal. The
preferred cutoff day for abnormal shedding
ranges from day 10 to 14, according to
different authorities.
DeMay 1996 The art & science of cytopathology Vol 1, p124. ASCP Press
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ASCCP Patient Management
Guidelines • Negative but lacking an endocervical/
transformation zone component – repeat in 12 months; within 6 month may be beneficial for patients with previous squamous abnormality, previous unexplained glandular abnormality, positive high risk HPV within 12 months, inability to clearly visualise the cervix, immunosuppression, insufficient previous screening
• Negative but partially obscuring blood, inflammation, other partially obscuring factors, or partial air drying – same; also consider early repeat if similar obscuring factor in consecutive test
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ASCCP Patient Management
Guidelines
• Unsatisfactory – repeat within a short
interval of 2-4 months; consider specific
treatment if due to obscuring inflammation
• Repeatedly unsatisfactory because of
obscuring blood, inflammation or
necrosis – colposcopy or biopsies (Davey 2002 J Lower Gen Tract Dis 195-199)
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Diagnostic procedures for the
evaluation of abnormal cytology
Repeat cytology
• The cervical epithelium needs time to
regenerate after cytology. Repeat
cytology should not be performed <3
months after a previous test.
Jordan et al 2008 Cytopathology 19:342-54
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Actinomycetes-like organisms
• Not diagnostic or predictive of any disease
• Role in infection in IUD users is unclear
• IUD should be removed in a symptomatic
woman, with appropriate antibiotic
treatment and referral to specialist
• No evidence to support the routine
removal of an IUD in an asymptomatic
woman
FFPRHC Guidance(Jan 2004) J Fam Plann Reprod Health Care 2004;30:29-41
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Actinomycetes-like organisms
• Little evidence to support routine follow-up
unless symptoms occur
• ‘Asymptomatic IUD users with ALOs
detected on a cervical smear should be
advised there is no reason to remove the
IUD unless signs or symptoms of infection
occur(Grade B)
FFPRHC Guidance(Jan 2004) J Fam Plann Reprod Health Care 2004;30:29-41
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• Symptoms: intermenstrual bleeding,
pelvic pain, deep dyspareunia, dysuria
• Signs of pelvic infection and/or pelvic
mass not due to another cause
• IUD sent for culture
• Penicillin, tetracycline or erythromycin for
a minimum of 2 weeks
Cayley et al Recommendations for clinical practice: actinomyces-like organisms
and intrauterine contraceptives. Br J Fam Plann 1998;23:137-8
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Other specific infections
• Candida – treat only if symptomatic
• Trichomonas – treat even if asymptomatic,
screen for other STDs
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Other specific infections
• Candida – treat only if symptomatic
• Trichomonas – treat even if asymptomatic,
screen for other STDs
• Herpes – screen for other STDs; ?HSV-2-
specific antibodies
• Chlamydia, gonococcus – needs
confirmation
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Calling patient back
• Nature of the abnormality – not diagnostic, need colposcopic assessment
• Not cancer – even for HSIL, the risk of cancer only 1-2%
• Procedure of colposcopy – similar to taking a smear with passage of speculum followed by examination and biopsy; whole procedure lasts 10-15 min
• If need treatment, most likely a local treatment, often as an outpatient and carries little if any risk to potential fertility
• (No urgency – even for untreated CIN III may take years before progression to cancer)
• Good time to advise against smoking
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Evidence-based medicine versus liquid-based
cytology
• Facilitate HPV testing – the reasoning that HPV
triage of ASC-US unequivocally justifies use of
liquid-based cytology is contestable
• Potential benefit of fewer unsatisfactory tests
with liquid-based cytology is unlikely to justify its
use, especially in light of concurrent false-
positive testing
• Laboratory simply stopped reading conventional
tests
(Sawaya 2008 Obstet Gynecol 111;2-3)
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Summary
• 2008 revised HKCOG guidelines
• In-phase endometrial cells in women >=40 or
endometrial cells in patients with IUD inserted:
no further action unless symptomatic
• Consider repeat cervical smear in 12 months if
smear negative but lacking an endocervical/
transformation zone component
• Repeat after 3 months if smear unsatisfactory
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Summary
• Actinomycetes-like organisms: may not need to remove IUD
• Other specific infections: diagnosis reliable for trichomonas and herpes; need confirmation for chlamydia and gonococcus
• Smoking worsens the prognosis of mild abnormalities
• No good evidence that liquid based cytology is better
• BSCC has proposed to revise the terminology for abnormal cervical cytology
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Thank you
Dr TC Pun
Honorary Associate Professor
Dept of Obstetrics & Gynaecology
The University of Hong Kong