Paediatric radiology

FRCR 2A Paediatric Radiology Revision Guide

A practical FRCR 2A paediatric radiology guide covering neonatal imaging, congenital disease, emergencies, safeguarding, modality choice and revision strategy.

Editorial review: The 2A Bank Clinical EditorLast reviewed: August 2026How we review content

Independent guide: The RCR does not publish a fixed number of questions for each curriculum area. Use this page to organise broad preparation, then check the current candidate guidance and clinical radiology curriculum.

How to think about this curriculum area

Paediatric radiology questions test more than smaller versions of adult disease. Age, developmental anatomy, congenital relationships, radiation protection and the order of investigations can completely change the best answer.

Revision should therefore connect imaging appearances to age and clinical pathway. Common emergencies and congenital abnormalities form the core, but technique, safeguarding and normal developmental variants are equally important sources of discrimination.

What the area includes

  • Neonatal chest and abdominal imaging, lines, ventilation and bowel emergencies
  • Congenital heart disease and postoperative cardiovascular anatomy
  • Paediatric gastrointestinal, hepatobiliary, renal and urinary disease
  • Childhood brain, spine, head-and-neck and orbital imaging
  • Paediatric MSK disease, trauma, safeguarding and skeletal dysplasia
  • Modality selection, ultrasound technique, dose optimisation and sedation considerations

Common single-best-answer tasks

Use age as an imaging feature

The same symptom has a different differential in a neonate, infant, child or adolescent. Age also changes normal marrow, ossification, organ appearance and the preferred first-line modality.

Recognise congenital relationships

Many questions depend on how structures connect, cross the midline, insert or drain. Trace the anatomy rather than choosing a syndrome from one familiar phrase.

Choose the least harmful adequate test

Ultrasound and MRI often have an important role, but urgency, availability and the specific clinical question still matter. Radiation protection does not mean CT is never appropriate.

Separate emergency findings from normal variants

Physiological periosteal reaction, sutural variants, neonatal lung appearances and developmental marrow can mimic disease. Learn the symmetry, age range and associated abnormal signs.

A practical revision framework

1

Revise by age band

Use neonatal, infant, childhood and adolescent sessions so that common presentations are linked to the right developmental stage and investigation pathway.

2

Build emergency pathways

Practise the first-line and problem-solving approach to bilious vomiting, intussusception, suspected appendicitis, sepsis, non-accidental injury and acute neurological deterioration.

3

Learn congenital anatomy with diagrams and cases

Simple sketches of cardiac connections, bowel rotation, urinary duplication and spinal dysraphism are useful when paired with actual imaging and clinical consequences.

4

Include technique in every block

Ask how the examination should be performed, what makes it adequate and which limitation matters. Paediatric technique is frequently inseparable from interpretation.

Common revision mistakes

  • Ignoring age and applying an adult differential or pathway
  • Assuming a normal vessel relationship excludes malrotation
  • Equating absence of ventricular enlargement with a functioning shunt
  • Overcalling symmetrical developmental or physiological appearances as injury
  • Neglecting congenital cardiac and head-and-neck imaging because paediatric abdomen feels more familiar

Readiness checklist

  • I can choose first-line imaging for common paediatric emergencies.
  • I can recognise key neonatal line, lung and bowel complications.
  • I can describe normal bowel rotation and the limitations of indirect ultrasound signs.
  • I can identify common congenital urinary and spinal relationships.
  • I can distinguish important safeguarding injuries from mimics and variants.
  • I understand age-appropriate marrow and skeletal development.
  • I can interpret common congenital cardiac connections and postoperative problems.
  • I have revised dose optimisation and the practical limitations of paediatric imaging.

Frequently asked questions

Should paediatric revision be organised by organ system?

Use organ systems, but add age-based and emergency-pathway sessions. Age and investigation sequence are central to paediatric SBA reasoning.

Is ultrasound always the first test in children?

No. Ultrasound is often preferred, but the correct modality depends on urgency, anatomy, diagnostic question and whether an adequate examination can be obtained.

How should I revise safeguarding imaging?

Learn the imaging protocol, high-specificity injuries, dating limitations, common mimics and when additional imaging is required. Avoid interpreting one finding without the whole pattern.

Continue your FRCR 2A preparation

Put the technique into practice

Try a free full-length FRCR 2A mock: 120 questions across all six curriculum areas, with flexible timing, immediate results and detailed answer review.