Pathology Flashcards
(189 cards)
Which phase of the menstrual cycle can vary in length
Proliferative phase
This is why women have different cycle lengths
Which hormones maintain the endometrium during pregnancy
Progesterone
HCG
Which cells within the ovary secrete hormones
The granulosa cells which surround the oocyte
Presence of what on histology suggest the endometrium is in the proliferative phase
Mitotic figures
Presence of what on histology suggest the endometrium is in the secretory phase
Glands become more complex
More tortuous/wiggly and later fill with secretions
How does obesity increase your risk of endometrial cancer
Higher levels of circulating oestrogen
Fat cells can produce it
List some indications for endometrial sampling
Abnormal bleeding Infertility Abortion - spontaneous and therapeutic Endometrial ablation Endometrial cancer screening
What is considered post-menopausal bleeding
if there has been no bleeding for a year and then it starts up again
What are the common causes of abnormal uterine bleeding
DUB due to anovulatory cycles Pregnancy and miscarriage Endometritis– inflammation of the endometrium Bleeding disorders Cancer
What is adenomyosis
Where you get glands and stroma in the muscular wall of the uterus which will cycle as normal
Leads to menorrhagia and dysmenorrhoea
Very painful condition and sometimes the only way to manage is hysterectomy
What is a leiomyoma
A very common smooth muscle tumour which can occur anywhere
Often called a fibroid
Which drugs can lead to abnormal uterine bleeding
Anything with exogenous hormones
HRT and tamoxifen
What endometrial thickness would be considered abnormal in post-menopausal women
Greater than 4mm
This is an indication for biopsy
How can you sample the endometrium
Endometrial pipelle - limited sample but easier/safer
Dilatation and curretage
Which phase in the menstrual cycle is worst for taking an endometrial sample
During menstruation
The architecture is hard to analyse as it is in the process of breaking down
Can exclude malignancy but nothing else
What is dysfunctional uterine bleeding
Irregular uterine bleeding that reflects a disruption in the normal cyclic pattern of ovulatory hormonal stimulation to the endometrial lining
No organic cause for bleeding
When is DUB most common
Either end of reproductive life
How can you recognise anovulation on histology
Gland will be disordered
Will have just kept proliferating
What is the function of the cervical mucous plug
Protects the endometrium from ascending infection
Changes with the cycle - easy for sperm to enter when fertile, harder when not
What is endometritis
Inflammation of the endometrium
Which microorganisms can cause endometritis
Neisseria Chlamydia TB - uncommon in UK CMV HSV
What are some non-microbiological of endometritis
IUD - copper
Post-partum or post-abortal
Leiomyomas or polyps
Granulomas - sarcoid
If you can see plasma cells in the endometrium what is the diagnosis
Chronic plasmacytic endometritis
Shouldn’t have plasma cells in the endometrium
Caused by an infection unless proven otherwise - associated with PID
How do endometrial polyps present
Usually asymptomatic but may present with bleeding or discharge
Common around or after the menopause