glandular lesions - asccp
TRANSCRIPT
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Glandular lesions
Epidemiology
Cytology, Histology
Management Algorithms
Case Studies
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Objectives
1. Understand the epidemiology of glandular
lesions.
2. Discuss the cytology, histology, and
colposcopy findings of AIS and cervical
adenocarcinoma.
3. Review the ASCCP guidelines and
algorithms on glandular cytology and AIS.
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Pap Nomenclature for
Glandular Abnormalities:
Bethesda 2001
Atypical Glandular Cells (AGC) Atypical endocervical cells
Atypical endometrial cells
Atypical glandular cells not otherwise specified (NOS)
Atypical Glandular Cells, favor neoplastic Atypical endocervical cells
Atypical glandular cells
Endocervical Adenocarcinoma In Situ (AIS)
AGC replaces prior terminology, “AGUS”
Solomon D et al. JAMA 2002; 287: 2114-9
UNM Pathology
AIS
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Makes up < 0.5% of all cervical cytology.
Histologic diagnosis after AGC on Cytology
○ Adenocarcinoma In Situ (AIS)
○ Squamous intraepithelial lesion (any)
Most common pathology with AGC
Often coexist with glandular lesions
○ Adenocarcinoma
Cervix, endometrium, tube, ovary, metastatic
○ Reactive, reparative, polyps
○ Microglandular hyperplasia from OCP’s○ Adenosis
AGC Cytology: What does it imply?
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Atypical Endocervical Cells:
Cytologic features
Sheets or strips with minimal nuclear
overlapping
Enlarged nuclei (3-5 x normal endocx)
Slight hyperchromasia
Mild variation in size and shape
Nucleoli may be present
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Atypical Endocervical Cells:
Differential Dx
Cervicitis / reactive endocervical cells
Directly sampled LUS / endometrium
Microglandular hyperplasia
Arias-Stella change
Tubal metaplasia
SIL (especially HSIL)
Endocervical AIS
Endocervical adenocarcinoma
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Cytology images from Bethesda Web Atlas- Thanks to Teresa Darragh, MD
Atypical endocervical cells, NOS
Endocervical repair
Radiation atypia
Reactive endocervical cells
Immature squamous metaplasia
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Directly sampled endometrium
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Microglandular Hyperplasia
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Arias-Stella Reaction
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Atypical endocervical cells:
Tubal metaplasia
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Bethesda Web Atlas
Atypical endocervical cells:
Tubal metaplasia
Can be very
Difficult!!!
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Bethesda Web Atlas
Atypical endocervical cells vs HSIL
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Bethesda Web Atlas
Endocervical AIS
60 % will also have CIN 2/3
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Wright et al JAMA 2002;287:2120-2129.
What is the Correlation of Glandular Pap Test
Abnormalities to AIS and Carcinoma?
Cytology diagnosis Likelihood of invasive CA, AIS, or CIN 2,3
AGC NOS 9 - 41%
AGC, favor neoplasia 27-96%
AIS
Biopsy-confirmed AIS 48-69%
Invasive adenocarcinoma 38 %
Atypical Glandular Cells on Pap have higher association
with cancer and pre-cancer than ASC-US
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Significance of Atypical Glandular CellsSchnatz et.al Obstet Gynecol 2006;107:701-8
Meta analysis of 3,890 AGC Paps +/- ASC-US
Follow-up diagnosis•HSIL 11.1%•AIS 2.9%•Endometrial hyperplasia 1.4%•Malignancy 5.2%
• AGUS favor neoplasia•AIS 13%•Malignancy 21%
Cancers found: Endometrium, endocervix, squamous cervix, ovary, fallopian tube, colon, breast
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Castle et al
Obstet
Gynecol,
20100%
10%
20%
30%
40%
50%
60%
HR-HPV- HR-HPV+ HR-HPV- HR-HPV+ HR-HPV- HR-HPV+
All Women <50 y.o. ≥50 y.o.
Ab
so
lute
Ris
k
CIN2+
CIN3+
Cervical Cancer
Endometrial Cancer
Most likely disease with AGC Pap is squamous. Cancer may
be squamous or adeno. Endometrial cancer not related to HPV
status and more common in older women.
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Atypical endometrial cells:
Cytologic criteria
Small cells groups (5-10 cells)
Nuclei slightly enlarged
Slight hyperchromasia
Small nucleoli
Cell borders ill-defined
Scant cytoplasm, +/- vacuoles
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Bethesda Web Atlas
Atypical endometrial cells
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Atypical endometrial cells:
Differential Dx
IUD effect
Endometrial polyps
Chronic endometritis
Endometrial hyperplasia
Endometrial adenocarcinoma
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Bethesda Web Atlas
Atypical glandular cells: IUD effect
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Atypical glandular cells:
Endometrial Polyp
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Atypical glandular cells:
Endometrial Hyperplasia
Bethesda Web Atlas
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Bethesda Web Atlas
Atypical endometrial cells
Endometrial hyperplasia
Endometrial carcinoma
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Cervical Adenocarcinoma In Situ
Preinvasive lesion of the endocervical glandular
cells
Increasing incidence
Average age: 35.8 yr
Range: 29-46 years
10-18 years younger than adenocarcinoma
10% multifocal skip lesions
Difficult to detect
May be missed on Pap
Does not obey usual colposcopy ‘rules’
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Histology of AIS
Glands lined with
atypical endocervical
cells,
Crowding, cribiform
pattern
Confined to gland
Multifocal disease
common
Almost half of cases
of AIS have
associated squamous
disease.
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AIS: Histology
Gross architectural pattern “normal”
Cellular abnormality confined to gland
Diagnosis depends on cellular changes
Loss of polarity
Increased nuclear size
Pseudostratification
MitosesUNM Pathology
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Increasing Incidence
of Adenocarcinoma in Situ
1.25 cases per 100,000 women
(compared with 44 cases of CIN 3 per
100,000).
Increased by 6 fold since 1970.
Absolute increase?
Increased rate of detection?
Wright TC et al. Am J Obstet Gynecol. 2007;197:340-345.
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Cervical Adenocarcinoma and SquamousCarcinoma Trends in the U.S.
Smith HO et al. Gynecol Oncol 2000;78:97-105
pe
r 1
00
,00
0 w
om
en
0
1000
2000
3000
4000
5000
6000
1973-77 1978-82 1983-87 1988-92 1993-96*
Adenocarcinoma
Squamous Cell Carcinoma
12
%
24
%
SEER Data
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AIS and Adenocarcinoma are HPV mediated.
HPV association: type 18 > type 16
SCC AC
HPV 16 50-60% 30%
HPV 18 10-20% 40-60%
HPV infection can alter squamous cells, glandular cells, or both
Concurrent squamous HSIL: 46-72%
Herzog T. Am J Obstet Gynecol 2007
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Screening with HPV diagnoses more
glandular lesions than Cytology alone.331,818 women enrolled in Kaiser N. Cal
Significantly more AIS and Adenoca diagnosed
over 5 yrs if initial screen:•HPV + vs Pap + (p<0.0001)
•HPV + / Pap – vs HPV -- / Pap + (p<0.0001)
AIS Adenocarcinoma
Total 70 27
Pap Negative 42 (60%) 23 (85%)
Pap Positive 28 (40%) 4 (15%)
HPV Positive 56 (80%) 21 (78%)
Pap -- / HPV + 31 (44%) 17 (63%)
Pap + / HPV -- 3 (4%) 0
Katki, Kinney, et al Lancet oncol.2011;12:663-72
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AIS is p16 positive.
p16
positive
UNM Pathology
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Colposcopic prediction of Glandular
Neoplasia
Prediction difficult to impossible
Diagnosis often serendipitous when looking for squamous disease
Features of AIS overlap with squamous lesions and immature squamous metaplasia
Final diagnosis made by your suspicion and histology
Features of AIS and Adenocarcinoma may overlap. Adenocarcinoma may have friability, necrosis, and
surface ulceration or nodularity
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Colposcopy of Glandular
Neoplasia
Most lesions lie within T-zone or close to SCJ
When glandular and squamous disease coexist, squamous component is more likely to be visible
Lesions may be within the endocervical canal
“Skip” lesions may exist
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Colposcopic Clues for
Adenocarcinoma in situ
Surface Patterns
Often looks like normal ectopy
Coalescing papillae
Variable size, irregular shape
Often confused for immature metaplasia
If AGC on Pap, biopsy anything that looks
abnormal.
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Colposcopy of AIS
Milky white lesion surrounded by glandular epithelium
May appear as variagated white patches on red
background
May or may not be adjacent to SCJ
Atypical vessels
Root-like vessels, hairpin vessels
Easily mistaken for cervicitis
Large gland openings
May not have rim of acetowhite
“Cuffed” gland openings
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29 y.o. with AGC on Pap
Ectropion or glandular lesion?
Richard Lieberman, MD
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Richard Lieberman, MD
Variegated red and white lesion
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Richard Lieberman, MD
Atypical coalescence of Papillae
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Richard Lieberman, MD
Note also root-like and hairpin vessels!
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Histology: AIS
Richard Lieberman, MD
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Photo: Lisa Flowers, MD
AIS - Milky white lesion, superficial
ulceration
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Milky White Lesion Extends Into
Canal
Photo: Alan Waxman, MD
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Photo: Lisa Flowers, MD
Root-like vessels
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AIS Prominent atypical surface vessels
Copious mucus
Photo: Alan Waxman, MD
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AIS : Copious mucus,
large ectopic gland openings
Photo: Alan Waxman, MD
Ectopic plug of
mucus
Gland opening,
mucus plug
removed Same without blue filter
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43 y.o.
Pap: atypical
endocervical
cells favor
neoplasia
Wide ectropion with
root like vessels
Photo: Alan G. Waxman, MD
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Histology:
Adenocarcinoma in situ
Photo: UNM Pathology
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Cervical Adenocarcinoma: Colposcopic Features
Similar to AIS, but More Pronounced
Color
Milky to densely white after acetic acid
Patches of red and white in ectropion
Yellow to orange color
Papillae of various sizes; may be large, fused
Columnar epithelium may surround lesion
Atypical Vessels: hairpin vessels, inconsistent caliber, root-like
Gland openings: large, irreg., may lack white outlines
Copious mucus production
Hemorrhage and necrosis on surface
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Cervical Adenocarcinoma: Exophytic
Richard Lieberman, MD
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Adenocarcinoma
Endophytic (Barrel Shaped)
Richard Lieberman, MD
Don’t forget to do a bimanual exam!
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Characteristic features of
adenocarcinoma
Densely acetowhite
Overlies columnar epithelium
Patchy red and white lesions
Atypical vessels
Apgar, Brotzman, Spitzer
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Adenocarcinoma:
abnormal papillary coalsecence
Before acetic acidAfter acetic acid
A text and atlas of integrated colposcopy : for
colposcopists, histopathologists and cytologists by
Anderson, M. C. Reproduced with permission of
CHAPMAN AND HALL (UK) in the format electronic
usage via Copyright Clearance Center.
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Adenocarcinoma: Milky white abnormal papillae
Atypical, Root-like and Hairpin vessels
Photo: Richard Lieberman, MD
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Milky white abnormal papillae surrounded by columnar
epithelium
Photo: Richard Lieberman, MD
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Atypical, Root-like and Hairpin Vessels
Photo: Richard Lieberman, MD
Root-like
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Atypical, Root-like and Hairpin Vessels
Photo: Richard Lieberman, MD
Hairpin
vessels
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Cervical Adenocarcinoma
Candice Tedeschi, OGNP
Milky white,
exophytic,
Ulceration and
necrosis,
atypical vessels
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Before Acetic Acid
Endocervical
Adencarcinoma -
Villoglandular Type
Photos: Alan G. Waxman, MD
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Endocervical
Adencarcinoma
Villoglandular Type
Photo: UNM Pathology
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Vessel pattern: Adenocarcinoma
Apgar, Brotzman, Spitzer
Note hairpin and
root-like vessels
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Squamous vs adenocarcinoma?
Candice Tedeschi, OGNP
It’s cancer!
Biopsy needed to
confirm histologic type
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Management Algorithms
Updated Consensus Guidelines
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Initial Workup of Women with Atypical Glandular Cells (AGC)
No Endometrial Pathology
All subcategories
(except atypical endometrial cells)Atypical Endometrial Cells
Colposcopy (with endocervical sampling)
and Endometrial sampling (if > 35 yrs or at risk for endometrial neoplasia *)
Endometrial and
Endocervical Sampling
Colposcopy
* Includes unexplained vaginal bleeding or conditions suggesting chronic anovulation.
© Copyright , 2013, American Society for Colposcopy and Cervical Pathology. All rights reserved.
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Atypical Glandular Cells
Neither HPV testing nor repeat cervical cytology sensitive enough to be used alone as triage test.
Initial evaluation includes multiple modalities: - Colposcopy
- Endocervical assessment and sampling
- Endometrial evaluation if indicated.
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Subsequent Management of Women with Atypical Glandular Cells (AGC)
No CIN, AIS or Cancer
Initial Cytology is
AGC - NOS
Manage per
ASCCP Guideline
CIN but no
Glandular Neoplasia
Initial Cytology is
AGC (favor neoplasia) or AIS
No Invasive Disease
Diagnostic
Excisional
Procedure +
+ Should provide an intact specimen with
interpretable margins. Concomitant
endocervical sampling is preferred
© Copyright , 2013, American Society for Colposcopy and Cervical Pathology. All rights reserved.
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Subsequent Management of Women with Atypical Glandular Cells (AGC)
No CIN2+, AIS or Cancer
Initial Cytology is
AGC - NOS
Manage per
ASCCP GuidelineCotest
At 12 and 24 months
Any abnormality
Colposcopy
CIN2+ but no
Glandular Neoplasia
Initial Cytology is
AGC (favor neoplasia) or AIS
No Invasive Disease
Diagnostic
Excisional
Procedure +
+Should provide an intact specimen with
interpretable margins. Concomitant
endocervical sampling is preferred
Both negative
Cotest 3 years later
© Copyright, 2013, American Society for Colposcopy and Cervical Pathology. All rights reserved.
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Subsequent Management of Women with Atypical Glandular Cells (AGC)
No CIN2+, AIS or Cancer
Initial Cytology is
AGC - NOS
Manage per
ASCCP GuidelineCotest
At 12 and 24 months
Any abnormality
Colposcopy
CIN2+ but no
Glandular Neoplasia
Initial Cytology is
AGC (favor neoplasia) or AIS
No Invasive Disease
Diagnostic
Excisional
Procedure +
+Should provide an intact specimen with
interpretable margins. Concomitant
endocervical sampling is preferred
Both negative
Cotest 3 years later
© Copyright, 2013, American Society for Colposcopy and Cervical Pathology. All rights reserved.
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Treatment of glandular lesions An intact specimen with interpretable margins is
key to direct therapy in glandular abnormalities.
Therefore clinicians should choose the modality most likely to yield the best pathologic specimen.
Endocervical curettage is recommended at the time of excisional biopsy in suspected glandular abnormalities.
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Thermal Effect on Endocervical Glands
Richard Lieberman, MD
Mucus conducts electricity very efficiently
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Conization versus large loop electrosurgical
excision for adenocarcinoma in situ
Positive margins more likely with LEEP
Author Cone
Biopsy
Positive
Margins
Large Loop
Electrosurgi
cal Excision
Positive
Margins
Wolf et al. (21) 43 18 (42%) 7 5 (71%)
Widrich et al.
(8)
18 6 (33%) 14 7 (50%)
Denehy et al.
(20)
24 8 (33%) 13 9 (69%)
Azodi et al.
(32)
25 6 (24%) 8 6 (75%)
Totals 110 38 (38%) 42 27 (62%)
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Management of Women Diagnosed with Adenocarcinoma in-situ (AIS) during
a Diagnostic Excisional Procedure
Margins Involved or
ECC Positive
Re-excision
Recommended
Hysterectomy - Preferred
Long-term
Follow-up
Conservative ManagementAcceptable if future fertility desired
© Copyright , 2013, American Society for Colposcopy and Cervical Pathology. All rights reserved.
Margins
Negative
* Using a combination of cotesting and
colposcopy with endocervical sampling
Re-evaluation*
@ 6 months - acceptable
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AIS, Implications of Conization Margin StatusSalani et al Am J Obstet Gynecol 2009;200:182 e1-5
Meta-Analysis, 33 studies / 1278 patients
Mean follow-up 39.2 months
607 pts. had second excision93 repeat conization / 499 hysterectomy
Residual AIS based on margins of first conization
Negative margins: 20.3%
Positive margins: 52.8%
RR: 4 (CI 2.62-6.33) p<.001
671 followed conservatively after excision
Recurrent AIS based on margins of first conization
Negative margins: 2.6%
Positive margins: 19.4%
Rr:2.5 (CI1.05-6.22) p<.001
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AIS, Implications of Conization Margin StatusSalani et al Am J Obstet Gynecol 2009;200:182 e1-5
29 patients in 13 studies developed invasive adenocarcinoma
5.2% with positive margins/ 0.7% with negative margins
Of 607 patients who underwent second excision
21 (3.5%) had adenocarcinoma on hysterectomy
Positive margins on initial conization: 17 patients
Negative margins on initial conization: 4
Of 671 patients followed conservatively
8 (1.2%) subsequently developed adenocarcinoma
Positive margins on initial conization: 6 patients
Negative margins on initial conization: 2
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Histologic AIS
Conservative management
When future fertility is desired
Re-evaluation at 6 months using a
combination of cervical cytology, HPV DNA testing, and colposcopy with endocervical sampling is acceptable in
this circumstance.
Long-term follow up is recommended for
women who do not undergo hysterectomy.
Massad LS et al. J Lower Genital Tract Dis. 2013. 17(5):S1-27
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AGW
AIS is hard to diagnose on colposcopicy. If the
Pap test shows AGC, biopsy anything that
looks abnormal.
Thank you!
AGW