Cervical diseases Flashcards
(27 cards)
What is an endocervical polyp?
- Groosly an outward projection and microscopically lined by columnar or squamous epithelium (since it a poly only) with a fibrovascular core
- It usually occur in the 4-6th decade with abnormal vaginal bleeding
Describe the microscopic photo of an endocervical polyp
1) Polyp lined with squamous/endocervical epithelium
2) It overlies a fibrous stroma with thick-walled vessels and cystically dilated endocervical glands
- The most important thing is the presence of ENDOCERVICAL glands
What is a condyloma acuminatum?
- Genital warts, where condyloma means a MASS and acumination means POINTED
What causes a condyloma acuminatum?
HPV 6 & 11 (which are the low-risk HPV that “Does not cause cancer”)
- It infects the Vulva, vaginal wall, anus and ectocervix (it loves stratified squamous cells and the basal cells)
How does HBV spread?
Skin-skin contact
What is the gross picture of a condyloma acuminatum?
Exophytic papillary lesion
What is the microscopic photo of a condyloma acuminatum?
1) Papillary lesions
2) Hyperkeratosis (increases the keratin in the skin, if the skin has keratin)
3) Acanthosis (thickening of the epidermal cells)
4) Koliocytic changes (creates a raisinoid hyperchromatic nuclei “perinuclear halos”)
What are the types of squamous intraepithelial lesions (SIL)/cervical intraepithelial neoplasia (CIN)?
1) Low-grade SIL: Mild dysplasia
2) High-grade SIL: Moderate to severe dysplasia
What are the causes of high-grade cervical intraepithelial neoplasia?
HPV 16, 18, and 18 other types
What is the gross picture of SIL?
- Using colonoscopy:
1) Discolored raised plaque (visually)
2) White-mosaic/cobblestone when we apply 3-5% acetic acid
3) Lugol’s iodine is used, which will make it turn bright yellow
What is the microscopic photo of SIL?
1) Low-grade: Nuclear pleomorphism and hyperchromasia in the lower 1/3 of the epithelium
2) High-grade: Nuclear pleomorphism and hyperchromasia in the lower 2/3 or in the entire thickness
- In high grade, P16 immunohistochemistry is used, and if the cells had a strong and diffuse nuclear cytoplasmic positivity in the full thickness, this is a strong indication of HPV
What is the treatment for high-grade SIL?
- Low-grade isnt a must to remove just keep visiting
- In high grade, we must remove and using electrosurgical excision procedure (LEEP), Conization, Laser, Cryosurgery, thermal ablation
What is cervical glandular intraepithelial neoplasia?
- AKA: Adenocarcinoma in situ (it can spread if not treated)
- It is a precancerous condition of the endocervix
- In situ” means the abnormal cells haven’t spread yet — they are still in their original place, but they can turn into cancer (adenocarcinoma)
- Adenocarcinoma in situ is due to the replacement of the normal endocervical cells with Atypical epithelium
What are the types of in situ adenocarcinoma?
- There are two main types depending on the HPV associated
1) HPV-Associated: Microscopically showing the “Usual type” and it shows p16 positivity on immunohistochemistry (which lights up if HPV is involved, showing a “brown blocky stain”)
2) HPV-Independent: it is less common and shows a gastric-type epithelium and p16 negative
Describe the microscopic photo of adenocarcinoma in situ
- Replacement of the endocervical epithelium on the surface and the glands by abnormal Atypical epithelium
Okay we are done with dysplasia next cards will be about cervical carcinoma
What is the type of cervical cancer in the ectocervix?
Squamous cell carcinoma
What is the type of cancer in the endocervix?
Adenocarcinoma
What is the risk factors for cervical carcinoma?
1) Ectocervix:
- Multiple sexual partners
- First intercourse at a young age (before 17)
- Persistent infection with a high-risk HPB (18 more than 16)
2) Endocervix carcinoma:
- Obesity
- Hypertension
- Oral contraceptive pills
- All of them increase the levels of estrogen
Describe the gross features of both cervical carcinoma
1) Fungating exophytic mass (cauliflower like mass that protrudes into the vagina)
2) Ulcerative lesion
3) Infiltrative masses (barrel-shaped cervix)
Describe the microscopic photo of squamous cell carcinoma
- Solid nests of malignant squamous cells that invade the underlying stroma
- If HPV associated it is then non-keratinizing, P16 positive
- If non-HPV associated, it is then keratinizing and caused by P53 mutation
What is the cause of non-HPV squamous cell carcinoma?
P53 mutation
What is the microscopic photo of the cervical adenocarcinoma?
1) HPV-Related: It could be usual ADC (malignant cells arranged in glands) or Mucinous ADC (malignant cells with mucinous secretion and signet ring (a ring with a flat top as the nucleus is pushed to one side)
2) Non-HPV associated ADC: There are three types: 1. Gastric type ADC, 2. Clear cell ADC where the nucleus protrudes beyond the boundaries of the cell (Hobnail nuclei), 3. Endometroid ADC
How does cervical cancer spread?
1) Direct
2) Lymphatics
3) Hematogenous