Anomaly Scan

Detailed fetal morphology between 18–22 weeks.

The anomaly scan, also known as the week 20 ultrasound (performed between weeks 18 - 22), shows the detailed morphology of the fetus and provides a calmer continuation of the pregnancy.

Together with the mini anomaly scan, this is the non-invasive and most detailed ultrasound examination in pregnancy through which fetal anatomy and key developmental parameters are assessed in the second trimester. The goal is to confirm normal development and identify in time findings that require additional workup or follow-up. At Polyclinic Cito the examination is performed thoroughly and with clear explanations of every finding. 

Page Overview

What is the anomaly scan?

The anomaly scan (morphological ultrasound) is an examination most often performed between the 18th and 22nd week of pregnancy. During this period it is possible to assess the baby's anatomy in detail. The brain, heart (four heart chambers), diaphragm, stomach, bladder, spine, sex, limbs and placenta are examined, along with a check for developmental abnormalities. 

It also includes measurements such as head size, abdominal circumference and femur length.

Note: The anomaly scan is a “detailed morphology” - but sometimes a follow-up (e.g. due to the baby's position) or additional work-up by indication is required.

What the examination may include

  • An assessment of the key anatomical structures (fetal morphology)
  • An assessment of growth and measurements against the weeks of pregnancy
  • An assessment of the placenta and amniotic fluid
  • An assessment of the fetal position and basic well-being parameters
  • Cervicometry  (assessment of cervical length) – by indication

When is it recommended?

An anomaly scan should be done in every pregnancy. The aim of the examination is to detect structural congenital anomalies (e.g. spina bifida, cleft lip, cardiac anomalies) and to check the normal development of the baby. Although it is very precise, it should be noted that it cannot detect all potential developmental anomalies. 

Standard recommendation

  • Most often between the 18th and 22nd week of pregnancy
  • As part of monitoring in the second trimester (detailed morphology)
  • If you want confirmation of normal development and clear instructions for continued monitoring
  • As part of the anomaly scan, a 3D/4D ultrasound can also be done

When it is particularly useful

  • If there is a risk factor in the medical history (a previous finding, family history, previous pregnancies)
  • If there were earlier uncertainties on the ultrasound and a more detailed assessment is needed
  • If you need an additional assessment of the cervix or a Doppler - as indicated
The gynaecologist's recommendation: It is best to plan the appointment in good time – ideally within the recommended window of the 18th-22nd week.

What does a morphological ultrasound examination look like?

It is performed by a specialist gynaecologist experienced in the morphological assessment of the baby. The examination is structured and unhurried - step by step.
1. Conversation

We review the weeks of pregnancy and previous findings and answer your questions. 

2. Aim of the examination

We explain what is assessed during the examination (morphology/growth/placenta).

3. Ultrasound - anomaly scan

A detailed assessment of the baby's anatomy and biometric measurements (head, abdomen, femur) along with an examination of the organs and the placenta.

4. Plan and recommendations

We explain the findings in a clear way and give instructions for the next steps. i

The examination most often lasts 20-45 min, depending on the baby's position and the scope of the assessment. If the baby is not in an ideal position, part of the assessment may require a brief additional check/follow-up.
We tailor our approach to you - the aim is for you to feel safe and informed.

How to prepare for the Anomaly scan?

No special preparation is needed; the examination is adapted to the week of pregnancy. 

  • Bring your maternity documentation and previous ultrasound findings.
  • There is no need to be fasting.
  • Come a few minutes early so that we can quietly go through a brief medical history.
  • If you have questions (findings, symptoms), write them down - we will go through them at the examination.

A quick checklist before your visit

  • May I bring a companion?
    Yes, your partner or another companion may be present at the examination if you wish. 
  • May I bring old findings?
    Yes - they are useful for comparison and decision-making.
  • What if I feel fear or discomfort?
    Tell us - we will adjust the pace and explain everything step by step.
Note:Our team of doctors performs the anomaly scan in accordance with the latest European guidelines.

What do you get from this examination?

Instead of a “general conclusion”, the aim is for you to leave with clear answers and a plan.

1
A clear assessment of morphology and growth

We assess the brain, heart, spine, organs, limbs and placenta, with measurement of the baby's growth and an assessment of development against the weeks of pregnancy.

2
A recommendation (with a reason)
If an additional assessment is needed (e.g. doppler/cervicometry) or a follow-up, you receive a clear “why” and “when”.
3
A pregnancy monitoring plan
Next steps and recommended follow-ups – without ambiguity.

In practice this means

  • a clear explanation of the anomaly scan findings 
  • an assessment of the baby's development
  • arranging a follow-up (if needed) with a clear timeframe
  • guidance on symptoms to watch for
Discreet
Clear
Safe

Why choose Cito Polyclinic?

The difference is in the details: enough time, a calm approach and clear recommendations that you can understand and follow. At the examination we provide: 

  • Enough time for the examination and questions
  • A clear explanation of the findings and the plan
  • A discreet and gentle approach
  • The possibility of extending the work-up on the spot (if needed)

Want a "stress-free" examination experience?

Tell us the week of pregnancy and whether you have any particular concerns - we will adapt the examination and explain the findings step by step.

Price of the anomaly scan

The price at Cito Polyclinic is 100and includes an ultrasound and an examination of the expectant mother. Additional tests such as CTG, Colour Doppler, cervicometry or swabs are charged separately, as needed.

You can get the first available appointment straight away by phone on +385 21 457 800 or by sending a short message via the contact form.

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