Neoplasms Flashcards
Cervical Intraepithelial Neoplasia (CIN)
The abnormal growth of potentially precancerous cells in the cervix. Most cases remain stable or are eliminated by the host’s immune system without intervention
Atypical squamous cells
Nuclear atypia is present but is not sufficient to warrant the dx of squamous intraepithelial lesion
ASC-US
Atypical squamous cells of undetermined significance
ASC-H
Cytologic changes suggestive of HSIL, but lacking definitive interpretation
Has a significantly higher predictive value for diagnosing CIN2 or CIN2 than ASC-US Paps
Management of ASC-US Paps
Repeat Pap smear until there are 2 consecutive normal Paps
OR
Immediate colposcopy
OR
DNA testing for high-risk types of HPV
Those women with ASC-US Pap smears who test positive for high-risk HPV should undergo colposcopy
Those who test negative should have a Pap in 1 yr
A woman with ASC-US and positive HPV results has the same risk for high-grade dysplasia as if she had an LSIL Pap smear and thus requires colposcopic eval
A woman with ASC-US and negative HPV can be reassured, treated as if she had a nl Pap smear, and followed with a Pap in 1 yr
Atypical glandular cells
Atypia that is of glandular rather than squamous origin
More likely to be serious with glandular abnormalities than an ASC-US Pap, so the work up is more aggressive than with an ASC-US Pap
If ID-ed, it will also report endocervical adenocarcinoma and adenocarcinoma in situ
Subdivisions of atypical glandular cells
Atypical endocervical
Atypical endometrial
Atypical glandular cells not otherwise specified
It may also say “favors neoplasia”
Atypical glandular cell management
All pts with AGC Pap smears should have colposcopy with endocervical sampling with the exception of pts with atypical endometrial cells
In those pts who have an AGC Pap smear with an abnormal bleeding hx, or who are >35 yrs, an endometrial bx should be added to the initial colposcopy and endocervical sampling
Atypical glandular cells, not otherwise specified management
If the initial work-up is negative, repeating Paps at 4 to 6-month intervals is indicated until there are 4 consecutive, negative Pap smears
Atypical glandular cells, favors neoplasia management
If the initial work up is negative these pts are treated in the same manner as those with adenocarcinoma in situ Pap smears and require a diagnostic excisional procedure
Low-grade Sqamous Intraepithelial Lesions
Includes findings of CIN1 (mild dysplasia) and findings consistent with HPV infection
High-grade Squamous Intraepithelial Lesions
CIN2 and CIN3 lesions (moderate dysplasia, severe dysplasia, and carcinoma in situ)
LSIL management
Referral for colposcopy May do "watchful waiting" if under 25 yoa Endocervical sampling (along with biopsies of any lesions visualized on colposcopy)is considered preferred in pts with unsatisfactory colposcopy or in those with satisfactory colposcopy and no lesion identified.
Where are abnormal biopsy samples from LSIL colposcopy sent?
Pathologist determines if there is any evidence of precancerous changes, called cervical intraepithelial neoplasia
These changes are categorized as being mild (CIN1) or moderate to severe (CIN 2 or 3)
Management of LSIL biopsy that confirms CIN1
If the lesion does not extend into the endocervical canal, pts can be followed with serial Pap smears with or without colposcopy for up to 24 mos before tx is necessary
What if LSIL bx confirms CIN1 and the lesion extends into the cavity?
An excisional procedure is recommended
HSIL management
All women should receive colposcopy with bx of any abnl areas along with endocervical sampling
Excisional procedures are recommended if the entire cervix is not able to be visualized during the colposcopy if over 24 yoa
When should excisional procedures be performed with HSIL?
If the cervix, during colposcopy, appears clearly abnormal, with follow up done based on pathology report
Types of cervical CA
Squamous cell carcinoma -About 80-85% Adenocarcinoma Adenosquamous carcinoma Neuroendocrine carcinoma
RFs for cervical CA
HPV infection
Smoking
HIV infection
Chlamydia infection
Dietary factors (diets low in fruits and veggies)
Hormonal contraception
Multiple pregnancies
Age less than 17 with first full-term pregnancy
Exposure to the drug diethylstilbestrol (DES)
FHx of cervical CA
Stage 0 cervical CA
Full thickness involvement of the epithelium without invasion into the stroma (carcinoma in situ)
Stage IA cervical CA
Dx-ed only by microscopy, no visible lesions
IA1- stromal invasion <3 mm in depth and 7 mm or less in horizontal spread
IA2- stromal invasion between 3 and 5 mm with horizontal spread of 7 mm or less
Stage IB cervical CA
Visible lesion or a microscopic lesion with more than 5 mm of depth or horizontal spread of more than 7 mm, no spread to nodes or other organisms
IB1- visible lesion less than 4 cm greatest dimension
IB2- visible lesion more than 4 cm
Stage IIA cervical CA
Without parametrial invasion, but may involve upper 2/3 of vagina
IIA1- visible and less than 4 cm, no node involvement, no distant sites
IIA2- visible and greater than 4 cm, no node involvement, no distant sites