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High Grade Squamous Intraepithelial Lesion
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High Grade Squamous Intraepithelial Lesion
, HSIL, HGSIL, CIN 2, CIN 3
See Also
Cervix Anatomy
Colposcopy
Colposcopy Findings
Colposcopy Protocol
Cervical Intraepithelial Neoplasia Procedures
Cervical Dysplasia
Atypical Squamous Cells of Undetermined Significance
(
ASCUS
)
Low Grade Squamous Intraepithelial Lesion
(
LSIL
)
Atypical Glandular Cells of Undetermined Significance
(
AGUS Pap Smear
)
Human Papillomavirus
(HPV)
Cervical Cancer
Precautions
Delay
LEEP
until after pregnancy
Low risk of progression in pregnancy
Lesions often regress in
Postpartum Period
Yost (1999) Obstet Gynecol 93:359-62 [PubMed]
Refer if inadequate
Colposcopy
Adequate
Colposcopy
requires visualization of SCJ
Colposcopy
adequate if SCJ fully visualized and
Lesion not identified and ECC completed or
Lesion responsible for abnormal pap was found
Evaluation
HSIL (or
ASC-H
) identified on
Cervical Cytology
(2014 Guidelines)
Option 1:
Colposcopy
CIN 2, 3
See CIN 2 or CIN 3 protocol as below
No CIN 2 or 3: Observe with
Colposcopy
and repeat cytology every 6 months for 2 years
HSIL cytology or high grade colpo for 1 year
Biopsy and treat as CIN 2,3 if positive biopsy
HSIL cytology without CIN 2,3 on colpo for 2 years
Diagnostic excisional procedure when not pregnant
Cytology negative x2 AND colpo without high grade colpo changes
Return to routine screening
Option 2: Immediate Loop electrosurgical excision
Contraindicated in pregnancy or as initial management in age under 25 years old
Evaluation
CIN 2 or CIN 3 on
Colposcopy
(2014 Guidelines)
Step 1a: Initial management of women over age 25 years based on
Colposcopy
results
Inadequate
Colposcopy
or Recurrent CIN 2, 3 or ECC with CIN 2, 3
Diagnostic Excisional Procedure
Adequate
Colposcopy
Excision or ablation of transformation zone
Step 1b: Initial management of women under age 25 years based on
Colposcopy
results
Option 1: Treat using protocol as in 1a (see above)
CIN 3 on
Colposcopy
Inadequate
Colposcopy
Per patient preference
Option 2: Observation with
Colposcopy
and cytology every 6 months for 12 months
Cytology and
Colposcopy
negative at 6 and 12 months
HPV and
Cervical Cytology
co-testing negative at 1 year
Space co-testing to every 3 years
HPV or
Cervical Cytology
co-testing positive at any time
Repeat
Colposcopy
and biopsy
Colposcopy
positive for CIN 3 or persistent CIN 2 for 24 months
Treat using protocol as in 1a (see above)
Step 2: Excisional procedure with positive CIN 2,3 margins (or on post-procedure ECC)
Option 1: Repeat Cytology and ECC in 4 to 6 months (preferred)
Option 2: Repeat diagnostic excisional procedure
Option 3:
Hysterectomy
Step 3: Repeat HPV and
Cervical Cytology
(co-testing) at 12 and 24 months
Repeat
Colposcopy
if either HPV or cytology is abnormal at either 12 or 24 months
Repeat HPV and cytology co-testing in 3 years if all tests are negative at 12 and 24 months
If negative repeat testing may return to routine screening
Resources
(2014) ASCCP Guidelines
http://www.asccp.org/Guidelines-2/Management-Guidelines-2
(2019) ASCCP Guidelines
https://www.asccp.org/management-guidelines
References
Apgar (2009) Am Fam Physician 80(2): 147-55 [PubMed]
Apgar (2004) Am Fam Physician 70:1905-16 [PubMed]
Wright (2002) J Low Genit Tract Dis 6:127-43 [PubMed]
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