Uterine Pathologu Flashcards
What imaging modality can assist with pre surgical staging?
Uterine cancer
MRI
- myometrial invasion
- cervical extension
- parametrial involvement
- lymph nodes
Stage 1A endometrial
Confinded to the corpus
<50% myometrium
Stage 1B
Limited to corpus
> /= 50%
Stage 2
Tumor invades cervical stroma but not beyond uterus
Stage 3A
Tumor Invades serosa +/- adnexa
Stage 3B
Vaginal involvement +/- parametrium
Stage 3C1
Positive pelvic nodes
Stage 3C2
Positive paraaortic nodes +/- pelvic
Stage 4A
Bladder +/- bowel mucosa
Stage 4B
Distand metastasis
Grade 1 disease
<5% nonsquamous or nonmorular solid growth pattern
Grade 2
6-50% nonsquamous or nonmorular solid growth
Grade 3
> 50% nonsquamous or nonmorular
What are the characteristics if high risk disease?(5)
- grade 3 tumor
- lymphovascular space invasion
- non endometriod histology( serous, clear cell, undifferentiated etc)
- cervical stromal involvement
- p53 molecular type
What imaging modalities are used to assess for recurrent disease?(2)
- CT
- FDG-PET/CT
What is the most common site of recurrence?
Vaginal cuff
Incidence of endometrial cancer
28 : 100,000
9000 new cases per year (UK)
Peak age of diagnosis
60-79 yo
What percentage is due to lifestyle and other known risk factors?
34%
Since the 1990s, mortality from endometrial cancer has increased or decreased?
Increased by 25%
What surgery would you perform for a grade 1 stage 1a endometriod adenocarcinoma
Total laparoscopic hysterectomy and bilateral salpingo-oophrectomy
Increasing incidence is due to what factors ? (3)
- obesity
- nulliparity
- aging population
What is the effect of parity on the incidence of endometrial cancer?
Nulliparity- increase (35-40% of cases are nulliparous)
Para 1- reduces risk by 30%
Para 2+ - additional 25% per pregnancy
Effect of estrogen HRT on endometrial CA?
2.3 times higher than non users
PCOS and endometrial ca
2.8 times higher than normal females
How does type 2 diabetes impact endometrial ca
40-80% increased risk
(Link possibly due to obesity and not directly to DM)
Risk of endometrial cancer with LYnch syndrome
40-60%
What ate protective factors against endometrial cancer (4)
- cigarette smoking (20-40%)
- COCP (25%)
- coffee intake (21%)
- exercise (15-25%)
Overall 5 year survival of endometrial cancer
80%
5 year survival stage 1 EC
85-90%
5 year survival stage 2 EC
75%
5 year survival stage 3 EC
45%
5 year survival stage 4 EC
<30%
What is the risk association if endometrial cancer and Cowden syndrome
30% life time risk
Types of uterine sarcomas (5)
1- leiomyosarcoma
2- endometrial stromal
3- undifferentiated uterine sarcoma
4- carcinosarcoma
5- mesenchymal
What is the most common uterine sarcoma
Leiomyosarcoma (60%)
What are the highest combination factors for developing endometrial cancer in patients with PMB
- PMB
- obesity
- diabetes
Total risk 29%
What is the overall risk of endometrial ca with PMB
10%
What is the risk of endometrial ca with PMB @ <50yrs old
1%
What percentage of patients with PMB have endometrial or cervical polyps
25%
Asymptomatic polyps 11.8%
Risk of malignancy withing an endometrial polyp
3%
Risk factors for malignant change of an endometrial polyp
- size >10mm
- menopause
- aub
Prevalence of atypia within a polyp
0.8%
What is the risk of malignant progression of hyperplasia without atypia
<5% over 20 years
What is the surveillance of EH without atypia on hormonal mx
6mnthly endometrial biopsy until 2 negative samples
What is the risk of malignant progression with EH with atypia
25-30% in 10 years
Risk.of endometrial CA if endometrial stripe 4mm or less
<1%
What percentage of endometrial ca is genetic
2-5%
What percentage of patients with a granulosa tumor will have endometrial cancer
10-15%
1:3 have hyperplasia