Week 12.0 - Gynae Tumours Flashcards
What is CIN?
-Cervical Intraepithelial Neoplasia -> premalignant changes of the cervix (dysplasia)
How long does CIN I take to progess to CINIII?
-7 years
What risk factor gives you the highest risk of developing CIN?
-HPV 16 and 18
Which part of the cervix is most commonly affected by CIN?
-Transformation zone
Besides HPV, give 3 risk factors for CIN
- Sexual intercourse
- Multiple births
- Longterm use of OCP
- Partner with carcinoma of the penis
Describe 3 disease factors which make cervical screening a good programme
- 3rd most common female cancer -> relevant
- Natural history and progression of disease well understood
- Has an early detectable stage
What is the most common type of cervical cancer?
-SCC
At what age does cervical cancer typically occur?
-Average age is 45
How does cervical cancer characteristically spread?
- Locally to para-cervical soft tissues eg bladder, rectum
- Lymphatics to surrounding lymph nodes
How does cervical cancer usually present?
- Screening abnormality
- Post-coital, intermenstrual or post-menopausal bleeding
What is endometrial hyperplasia a precursor to?
-Endometrial carcinoma
What is the main risk factor for endometrial carcinoma?
-Prolonged oestrogen exposure
eg exogenous oestrogen, increased oestrogen from endogenous sources eg adipose, annovulation
When does endometrial adenocarcinoma commonly occur?
-between ages 55-75 (rare before 40)
What are the two main types of endometrial adenocarcinoma and state the differences between them
- Endometrioid -> Common, glandular proliferation, arising after endometrial hyperplasia,
- Serous -> poorly differentiated, aggressive, worse prognosis, exfoliates
What is a leiomyoma?
-Fibroid -> beinign tumour of smooth muscle of myometrium
Where does leiomyosacroma metastasise?
-Lungs