Week 9: Cervix Pathology Flashcards
What are common cervical symptoms?
- Vaginal discharge or dryness
- AUB
- Urinary Symptoms
- Pelvic Pain
- Sexual Dysfunction
ID
normal cervix
ID
Normal Cytology stain
basophilic cells - mature/intermediate squamous cells
eosinophilic cells - superficial squamous cells
ID
Low-Grade Squamous Intraepithelial Lesion (LSIL)
What are the features of Koilocytic Atypia
- Perinuclear Halo - HPV proteins break down the perinuclear keratin (orange arrow)
- Enlarged, Irregular, Hyperchromatic Nuclei - may be multinucleated or incompletely split (rasinoid/dumb-bell nucleus) (cyan arrow)
- Increased N/C ratio - more nucleus and less cytoplasm (yellow arrow)
ID
Low-Grade Squamous Intraepithelial Lesion (LSIL)
HPV infection: Perinuclear Halo (orange arrow), multinucleated with increased N/C ratio and fine chromatin (yellow arrow), and rasinoid/dumb-bell nucleus (cyan arrow)
ID
Normal cervix
Colposcopy
ID
Low-Grade Squamous Intraepithelial Lesion (LSIL)
Colposcopy
ID structure #1
Mature Squamous Cells
Ectocervix
ID structure #2
Immature Squamous Cells
Susceptible to HPV
ID structure #3
Squamocolumnar Junction (SCJ)
ID structure #4
Columnar Glandular Cells
Endocervix
ID
Low-grade Squamous Intraepithelial Lesion (LSIL)
HPV infection: koilocytic changes
ID
normal stratified squamous epithelium
ID
Low-grade Squamous Intraepithelial Lesion (LSIL)
ID
High-grade Squamous Intraepithelial Lesion (HSIL)
CIN-2 and CIN-3
What HPV strains lead to dysplasia?
HPV 16 and 18
What HPV strains do not lead to dysplasia, but lead to genital warts?
HPV 6 and 11
What does the HPV E6 protein do?
- Activates Telomerase Transcriptase (TERT) promotor
- Inhibits p53
What does the HPV E7 protein do?
- Inhibits p21
- Inhibits RB
you have to be 21 to drink “root” beer (RB) and your blood alcohol content (BAC) can’t be >.079
ID
High-grade Squamous Intraepithelial Lesion (HSIL)
CIN 3
ID
Adenocarcinoma in Situ
invasion has gone beyond the basement membrane
ID
Squamous Cell Carcinoma
Keratin pearl lower half of the image
ID
Endocervical Adenocarcinoma