Tumours of Reproductive Tract Flashcards
What is the most common type of vulval cancer?
Squamous cell carcinoma
What are the clinical features of vulval cancer?
Lumps
Skin changes
Ulvers
What is VIN?
Vulval intraepithelial neoplasia
In situ precursor to vulval SCC - atypical cells confined to epidermis
Where can vulval cancer spread?
Direct
- anus
- vagina
- bladder
Lymph nodes
- inguinal
- iliac
- para-aortic
Mets
- lungs
- liver
What is the cervical transformation zone?
During puberty - oestrogen increases
Cervix exerts - simple columnar epithelium is exposed to low vaginal pH
Metaplasia (stratified squamous) occurs = transformation zone
What HPV subtypes are a risk for cervical cancer?
HPV 16
HPV 18
How does HPV increase risk of cervical cancer?
Infects transformation zone
Produces viral proteins E6 + E7
E6/7 inactivate tumour suppressor genes
Results in uncontrolled cell growth
What is CIN?
Cervical intraepithelial neoplasia
Dysplasia caused by HPV confined to cervical epithelium
What are the stages of CIN?
CIN 1 - mild
CIN 2 - moderate
CIN 3 - severe
What are risk factors for CIN/cervical cancer?
Increased risk of HPV Early pregnancy Multiple births Smoking Immunosuppression
What is the management for CIN1?
Often regresses spontaneously
Follow up smear in 1 year
What is the management for CIN2/3?
Large loop excision of transformation zone
When should you receive a cervical smear?
25-49 = every 3 years
50-64 = every 5 years
65 + = only if recent abnormality
What are the common types of cervical cancer?
SCC
Adenocarcinoma
How does cervical cancer present?
Bleeding
- post-coital
- intermenstrual
- post menopausal
Mass
How is cervical cancer staged?
Stage 1 = confined to cervix
Stage 2 = disease beyond cervix
Stage 3 = disease to pelvic wall or lower 1/3 of vagina
Stage 4 = invades bladder, rectum or metastases
How is cervical cancer managed?
Hysterectomy
Lymph node dissection
Chemoradiotherapy
What is endometrial hyperplasia?
Thickened endometrium >11mm
Precursor to endometrial cancer
What causes endometrial hyperplasia?
Excessive oestrogen
How does endometrial cancer present?
Intermenstrual bleeding
Postmenopausal bleeding
Mass
What are the types of endometrial cancer?
Endometrioid adenocarcinoma
Serous
What is endometrioid adenocarcinoma?
Most common endometrial cancer
Resembles normal endometrial glands
How is endometrioid adenocarcinoma staged?
Stage 1 = in endometrium Stage 2 = cancer grown into cervix Stage 3a = cancer spread into ovary Stage 3b = cancer spread into vagina Stage 3c = cancer spread into lymph nodes Stage 4a = cancer in bladder/bowel Stage 4b = cancer in distant organ
What is serous endometrial cancer?
More aggressive cancer with poorly differentiated cells
How does serous carcinoma spread
Exfoliates
Travels through fallopian tubes
Deposits on peritoneal surface
Associated with psammoma bodies - calcium collections
How is endometrial cancer managed?
Hysterectomy
Bilateral sapingo-oophrectomy
+/- lymph node dissection
+/- chemoradiotherapy
What tumours can affect the myometrium?
Leiomyoma
Leiomyosarcoma
What is leiomyoma?
Benign, well circumcised tumour in myometrium
How does a leiomyoma present?
Asymptomatic
Pelvic pain
Heavy periods
Urinary frequency - bladder compression
What is leiomyosarcoma?
Malignant tumour of smooth muscle
How does ovarian cancer present?
Early symptoms = vague
Late symptoms
- abdo pain
- abdo distension
- urinary symptoms
- hormonal disturbances
What is a serum marker for ovarian cancer?
Ca-125
What are the subtypes of ovarian tumours?
Epithelial
Germ cell
Sex cord stromal
What types of epithelial ovarian tumours are there?
Serous
Mucinous
Endometrioid
What is the appearance of ovarian serous tumours?
Highly atypical pleomorphic cells
Often show psammoma bodies
Where can ovarian serous tumours spread?
Peritoneal surface
What is the appearance of ovarian mucinous tumours?
Atypical epithelial cells
Secrete mucin
What is the appearance of ovarian endometrioid tumours?
Glands resembling endometrium
What types of germ cell ovarian tumours are there?
Teratoma Dysgerminoma Choriocarcinoma Embryonal carcinoma Yolk sac tumour
What are the types of teratoma?
Mature - benign
Immature - malignant
Monodermal
What is a mature teratoma?
Also known as a dermoid cyst
Contains fully mature differentiated tissue
What is an immature teratoma?
Contains immature embryonal tissue
What is a monodermal teratoma?
Teratoma comprised almost entirely of one cell type
Benign
What is the most common tissue in a monodermal teratoma?
Thyroid tissue
What are the sex cord stromal ovarian tumours?
Tumours resembling
- Sertoli-Leydig cells
- granulosa-theca cells
What is the effect of granulosa/theca cell ovarian tumours?
Produce oestrogen
Precocious puberty
Endometrial hyperplasia
What is the effect of Sertoli/Leydig cell ovarian tumours?
Produce testosterone
Sterility
Amenorrhea
Hirsuitism
What cancers commonly metastasise to the ovary?
Breast
GI
Other gynae tumours
What is a risk factor for testicular cancer?
Cryptorchidism
What is the presentation of testicular cancer?
Mass /- pain
What are the subtypes of testicular cancer?
Germ cell
- seminomatous - seminoma
- non-seminomatous - teratoma
Non-germ cell
- sex cord stromal - Leydig/Sertoli
What are testicular cancer markers?
B hCG - choriocarcinoma
Alpha fetoprotein - yolk sac tumours