Practice exam Flashcards
Define polycystic ovary syndrome (2 marks)
an endocrine disorder
produces anovulation
results in infertility,
characterised by multiple cysts in the ovary
What is the ultrasound appearance of PCO?
one or both ovaries have 20 or more antral follicles
An antral follicle is defined as a fluid filled cystic
space less than 8mm
The ovary size may be normal or enlarged
ovaries may appear more rounded with an increase in stromal echogenicity
difference between Polycystic Ovaries and Polycystic ovarian syndrome
PCO refers to the ovaries containing multiple cysts
PCO Syndrome relates to the
associated features that occur with the abnormal hormone levels and an imbalance
of testosterone & oestrogen
i.e. may include clinical signs & symptoms such as
amenorrhea, obesity, hirsutism
Discuss the advantages and disadvantages of trans-abdominal US of the pelvis
Adv - wider field of view - global imaging of pelvic structures - achieve penetration to deeper structures can measure entire uterus visualisation of large pelvic masses
Disadv
- requires full bladder which is sometimes not possible
- in large patient resolution is compromised due to depth of structures
- delineation of pathology is inferior to TV scanning
Discuss the advantages and disadvantages of trans-vaginal ultrasound of the pelvis
Adv
- better resolution due to higher frequency probe
- clearer imaging due to being closer to ROI
- ability to use dynamic assessment to assess for pain, adhesions, push bowel out of way etc.
Disadv
- limited field of view
- structures high and lateral in pelvis not imaged
- orientation can be difficult
- patient anxiety over invasiveness of test
Briefly define the pathology and describe the ultrasound appearances of:
a) endometrioma
- a collection of blood surrounded by endometrial tissue
- a localised form of endometriosis in which ectopic endometrial tissue is deposited around the pelvic organs
US appearances:
- unilocular or multilocular cysts
- 95% seen as cysts containing a few low level echoes,(ground glass appearance)
- typically no internal vascularity
Briefly define the pathology and describe the ultrasound appearances of:
b) hydrosalpinx
- fluid in the fallopian tube mostly as a result of PID.
US - dilated, tortuous(serpiginous) anechoic tubes
Briefly define the pathology and describe the ultrasound appearances of:
c) endometritis
inflammation of the endometrium often related to PID but can be due to IUCD perforation, retained POC, post caesarean delivery
US appearances:
- normal uterus in 75% of cases
- uterine enlargement
- widened endometrium
- air in the endometrium from gas forming bacteria,
- fluid in endo cavity,
- hypoechoic halo around endometrium
A 45 y.o. man presents with right scrotal pain. The request reads: scrotal US ?path
Q1.Define the following pathologies
a) epididymal cysts
cystic dilatation of the epididymal tubules
contain clear serous fluid
common in older men
most often found in the head of the epididymis.
A 45 y.o. man presents with right scrotal pain. The request reads: scrotal US ?path
Q1.Define the following pathologies
b) orchcitis
Inflammation of the testes
may be diffuse or focal
usually a secondary infection from epididymitis or STD
A 45 y.o. man presents with right scrotal pain. The request reads: scrotal US ?path
Q1.Define the following pathologies
c) testicular abscess
A localized or encapsulated area of infection
rare
follows epididymo-orchitis