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Radiology
Chorioangioma
Built from Obstetric Imaging
What’s inside
5 sections · 41 slides
Overview
- What this topic covers
Where it grows and what it is made of
The placenta, the chorionic villi, and a knot of extra vessels
- Start with the placenta
- How the placenta connects mother and baby
- Inside a single villus
- So what is a chorioangioma?
- 0.5-1%
- Most are too small to matter
- Two tissue patterns under the microscope
- What the pathologist sees
- A sharp border between normal placenta and tumour
- A tumour made of crowded blood vessels
- Why size is the whole story
- Size decides the risk
What a large one does to mother and baby
Growth, fluid, bleeding, and a heart working too hard
- Which pregnancies get into trouble
- What can go wrong for the baby
- Two very different lesions
- A delivered placenta carrying a large mass
Finding it on ultrasound
Grey-scale appearance, colour Doppler, and the look-alikes
- Why most are never spotted before birth
- What it looks like on a plain scan
- A dark, well-circumscribed mass on the placental surface
- Measuring the mass across three axes
- Colour Doppler is what settles it
- Blood flow inside the mass
- The evidence behind using colour
- Proving the vessels belong to the baby
- Where MRI fits
- Other solid masses in the placenta
- Telling them apart
Looking after the pregnancy
Surveillance, when to intervene, and what happens after birth
- The surveillance plan
- How closely to watch
- When nothing is going wrong
- When the fetus is in trouble
- What has been tried over 30 years
- What those attempts achieved
- Planning the birth
- The five things to remember
- Complications worth naming again
- References
- References (continued)
- Suggested readings
- Obstetric Imaging: Fetal Diagnosis and Care, 2nd Edition