FRCR Part 2B: Understanding the Exam Pattern and How to Approach It

 

The FRCR Part 2B examination is often considered the most challenging stage of the FRCR journey. By the time you reach this point, you have already invested months, if not years, preparing for the earlier parts of the examination. The good news is that passing Part 2B is not about being the most brilliant radiologist in the room. It is about being a safe, systematic and sensible radiologist.

One lesson I learnt while preparing for the examination is that mindset matters as much as knowledge. Many candidates spend countless hours memorising previous recalls and notes. While these are useful for practice, they alone are not enough. The FRCR is designed to assess how you think, how you communicate, and whether your reporting is safe for patient care.

Having appeared for examinations in India as well, I noticed a few important differences between the FRCR and our conventional postgraduate examinations.

Indian postgraduate examinations	FRCR Part 2B
Questions are relatively more predictable	Cases are less predictable and vary between sittings
Previous years' questions are highly useful	Understanding concepts is more important than memorising recalls
Diagnosis is often the main focus	Safe reporting and appropriate management are equally important
Time pressure is present but relatively forgiving	Strict time limits demand concise reporting and quick decision-making

The NHS is looking for a radiologist who can recognise important findings, communicate them clearly, and make safe management recommendations. Remember this throughout your preparation:

FRCR Pearl: Safe reporting is a safe pass.

This article is not meant to replace the official guidance from the Royal College of Radiologists (RCR). Instead, it aims to simplify the examination pattern and share practical tips that can make your preparation more focused.

 

FRCR Part 2B at a Glance

The examination consists of three components.

Component	Cases	Duration
Short cases	25	120 minutes
Long cases	6	75 minutes
Oral examination	12 (6 per station)	60 minutes

Although each component tests different skills, the underlying principle remains the same—observe carefully, think logically and report safely.

 

Component 1: Short Cases

Candidates familiar with the older examination format should note that since June 2025, the traditional rapid reporting session has been replaced by short cases. Although the format has changed, the aim remains the same—to assess your ability to interpret radiographs accurately within a limited time.

 

Number of cases	25
Duration	120 minutes
Average time per case	4.8 minutes
Marks per case	0–5
Maximum marks	125
Imaging	Plain radiographs
Clinical history	Brief history provided
Normal radiographs	Not included

 

What is expected?

For every case, keep your answer simple.

Describe → Diagnose → Recommend

Your report should include:

• Important imaging findings
• Most likely diagnosis
• Appropriate next investigation or management, when indicated

Avoid writing long reports. Examiners are looking for concise and clinically relevant answers.

 

Typical Case Distribution*

Subspecialty	Approximate proportion
Chest	50–60%
Musculoskeletal	40–50%
Abdomen	Up to 4%

Adult cases are considerably more common than paediatric cases, with an approximate ratio of 3:1.

*The exact distribution may vary between examination sittings.

How should you prepare?

• Report radiographs every day.
• Practise under timed conditions.
• Develop a consistent reporting style.
• Use precise radiological terminology.
• Learn to identify emergency findings quickly.

Exam Tip: Speed improves only with practice. Reporting 10–15 timed radiographs daily is often more useful than spending hours reading theory.

Common Mistakes

• Writing lengthy reports.
• Listing multiple unlikely differential diagnoses ("scattergun" approach).
• Ignoring the clinical history.
• Missing obvious emergency findings.
• Recommending unnecessary investigations.

Don't Forget the Normal Variants

Not every unusual appearance represents pathology. Developmental variants, accessory ossicles, vascular grooves and benign anatomical variants can mimic disease. Overcalling these findings may lead to unnecessary investigations and loss of marks.

FRCR Pearl: If you are unsure, ask yourself one question—"Would I confidently report this as abnormal in my daily practice?" The examination rewards safe judgement more than adventurous diagnosis.

Take-home Messages

Do	Don't
Be concise	Ramble
Describe before diagnosing	Jump straight to conclusions
Use the clinical history	Ignore the history
Suggest appropriate next steps	Recommend unnecessary tests
Think like a reporting radiologist	Think like a guess-the-diagnosis quiz

 

Component 2: Long Cases

The long cases are designed to assess your ability to report cross-sectional imaging in a structured and clinically relevant manner. Unlike the short cases, these are not about speed alone. They test whether you can analyse multiple findings, arrive at the correct diagnosis, and suggest appropriate management.

Number of cases	6
Duration	75 minutes
Average time per case	10–12 minutes
Marks per case	0–5
Maximum marks	30
Imaging	CT, MRI and other cross-sectional imaging (often multiple series/sequences)

What Should Your Report Include?

A simple reporting template works well for every case.

1. Observations – Describe the important findings.
2. Interpretation – What do these findings represent?
3. Principal diagnosis – State the most likely diagnosis.
4. Differential diagnosis – Include only if genuinely relevant.
5. Management – Suggest the next investigation, MDT discussion, follow-up or referral where appropriate.

If the case demonstrates a life-threatening abnormality, state clearly that the referring clinician should be contacted urgently. Safe communication is an important part of safe reporting.

FRCR Pearl: A safe report is not just about making the correct diagnosis—it is also about recognising when urgent action is required.

Approach Every Case the Same Way

Using the same sequence for every report helps reduce errors, especially under pressure.

Step	Ask yourself?
Observe	What are the key abnormalities?
Interpret	Can I explain the findings?
Diagnose	What is the single best diagnosis?
Differentiate	Are there any reasonable alternatives?
Manage	What should happen next?

A consistent structure also makes your reports easier for the examiner to follow.

Practical Tips

• Read the clinical history before reporting.
• Review every image systematically.
• Mention important negative findings when they influence the diagnosis.
• Keep your differential diagnosis focused.
• Suggest the next appropriate imaging study or MDT discussion where relevant.
• If an emergency is present, mention urgent communication with the clinical team.

Common Mistakes

• Writing a list of unrelated differential diagnoses ("scattergun" reporting).
• Ignoring the clinical history.
• Missing important negative findings.
• Describing abnormalities without providing an interpretation.
• Forgetting to suggest the appropriate next step.

Think Safe, Not Clever

Candidates sometimes feel they need to impress the examiner by listing rare syndromes or unusual diagnoses. In reality, this often weakens the report.

The examiner wants to know:

• Have you recognised the important findings?
• Can you explain them logically?
• Have you suggested safe and appropriate management?

If the diagnosis is uncertain, acknowledge it and provide a sensible differential rather than forcing an exotic answer.

Exam Tip: Keep common things common. A focused report with one or two sensible differentials usually scores better than a long list of unlikely possibilities.

Take-home Messages

Do	Don't
Follow a structured template	Report in a random order
Use the clinical history	Ignore the clinical context
Include important negatives	Mention every minor incidental finding
Give focused differentials	Use a scattergun approach
Recommend appropriate management	Forget the next clinical step

Remember, the long cases are not simply an imaging test. They assess whether you can produce the kind of report that a clinician would confidently use to manage a patient. Think like a consultant radiologist, communicate clearly, and always put patient safety first.

 

Component 3: Oral Examination

For many candidates, the oral examination is the most intimidating part of FRCR Part 2B. In reality, it is not a memory test. It is an assessment of how you interpret images, communicate your thoughts, and arrive at a safe management plan.

The examiner is interested in how you think, not just what you know.

Oral Examination at a Glance

Feature	Details
Total duration	60 minutes
Number of stations	2
Cases per station	6
Total cases	12
Time per case	5 minutes
Number of examiners	2 per station (4 in total)

Each examiner scores every case across multiple domains, including image interpretation, clinical reasoning, communication and management.

 

What Are the Examiners Looking For?

A good viva answer should demonstrate that you can:

• Identify the important imaging findings.
• Arrive at a logical diagnosis.
• Suggest appropriate differential diagnoses when required.
• Recommend the next investigation or management step.
• Communicate your thoughts clearly and confidently.

Remember, you are being assessed as a future consultant radiologist rather than as a student recalling textbook facts.

 

A Simple Approach to Every Case

Whenever a new case appears, follow the same sequence.

1. Describe the important findings.
2. Interpret what they represent.
3. Give your most likely diagnosis.
4. Mention a focused differential if appropriate.
5. Suggest the next investigation or management.

Having a fixed approach helps you remain composed, even when the diagnosis is not immediately obvious.

 

Practical Tips

• Think aloud so the examiner understands your reasoning.
• Keep your answers structured.
• Start with the most likely diagnosis.
• Use the clinical history to narrow your differential.
• Stay calm if the examiner redirects or prompts you.
• If you do not know the diagnosis, continue describing the findings logically.

FRCR Pearl: Silence does not earn marks. If you are unsure, describe what you see and explain your thought process.

 

Common Mistakes

• Jumping straight to a diagnosis without describing the images.
• Chasing rare diagnoses before considering common conditions.
• Giving an endless list of differential diagnoses.
• Speaking too quickly or changing your opinion repeatedly.
• Panicking when prompted by the examiner.

Remember, a prompt is not necessarily a sign that you are performing poorly. It is often the examiner's way of assessing your reasoning or helping you move forward.

 

Preparing for the Viva

Like any other skill, viva performance improves with practice.

• Practise cases regularly with friends or study groups.
• Explain your findings aloud rather than silently reviewing images.
• Time yourself to simulate examination conditions.
• Listen to feedback on both your knowledge and your communication style.

The more you verbalise your reasoning during practice, the more natural it becomes during the examination.

 

Take-home Messages

Do	Don't
Think aloud	Stay silent when unsure
Describe before diagnosing	Jump to conclusions
Keep common things common	Chase rare diagnoses first
Stay calm if prompted	Assume prompting means failure
Be structured and logical	Give disorganised answers

 

One Case, Many Lessons

Sometimes a single case teaches more than an entire revision book.

Imagine you are shown an AP radiograph of the pelvis.

Within seconds, you identify a fracture involving the right lesser trochanter.

You are pleased—you have spotted the abnormality quickly.

The examiner then asks,

"What would you do next?"

You answer,

"I would obtain dedicated radiographs of the right hip."

A reasonable response.

The dedicated hip radiographs are shown.

This time, however, your attention remains fixed on the fracture. You fail to appreciate the surrounding soft tissue abnormality.

Confidently, you diagnose a traumatic fracture and recommend urgent orthopaedic fixation.

Unfortunately, you have missed the real diagnosis.

 

The First Lesson

An isolated avulsion fracture of the lesser trochanter is uncommon in an elderly patient.

Instead of asking,

"Where is the fracture?"

you should also ask,

"Why has this fracture occurred?"

In adults, particularly the elderly, an isolated lesser trochanter fracture should immediately raise suspicion for an underlying pathological lesion.

FRCR Pearl: Never stop after identifying the first abnormality. Always look for the underlying cause.

 

The examiner now shows you a CT of the brain.

At first glance, it appears normal.

Instead of moving on, you ask to review the bone window.

Now you identify calvarial destruction.

This is another important lesson.

Different window settings often reveal additional findings. Never hesitate to ask for them if they are relevant.

 

Finally, you are shown a CT of the thorax, abdomen and pelvis.

Multiple metastatic deposits are present.

The primary tumour is a renal cell carcinoma.

You appropriately recommend discussion at the oncology MDT.

The examiner then asks,

"From where would you obtain a biopsy?"

Many candidates instinctively answer,

"From the renal mass."

A safer response would be to biopsy the most accessible metastatic lesion that is likely to provide adequate tissue with the lowest procedural risk.

Again, the examiner is assessing clinical judgement rather than image interpretation alone.

 

What Does This Case Teach?

• Don't stop after finding the first abnormality.
• Always correlate the imaging findings with the patient's age and clinical history.
• Ask for additional image windows when appropriate.
• Think about the underlying diagnosis, not just the obvious finding.
• Recommend the safest next step for the patient.

This is exactly the type of reasoning the FRCR examination is designed to assess.

 

Recommended Resources

No single resource is sufficient for FRCR Part 2B preparation. A combination of case practice, reporting and viva preparation works best.

Resource	Best Used For
Radiopaedia	Daily case practice, spot diagnosis and differential diagnoses
Revise Radiology	FRCR-style teaching cases and high-yield revision
Radiology Vibes	Viva discussions and examination tips
Radiology Café	Concise notes and exam-oriented revision
LearningRadiology	Pattern recognition, especially plain radiographs
Eurorad	Real-life teaching cases with detailed discussions
IMAIOS e-Anatomy	Cross-sectional anatomy revision
RCR Official Website	Examination regulations, candidate guidance and latest updates

A Few Final Tips

• Report cases every day.
• Practise under strict time limits.
• Join a viva group if possible.
• Learn from every incorrect answer.
• Review common pathologies repeatedly.
• Don't neglect plain radiographs—they form the backbone of the short cases.

 

Final Thoughts

The FRCR Part 2B examination is not a test of who knows the rarest diagnosis. It is a test of whether you can think systematically, report clearly and make safe clinical decisions under pressure.

Develop a structured approach and use it for every case. Practise regularly, review your mistakes and learn to communicate your reasoning confidently.

Finally, remember that passing the FRCR is not about being perfect. Every candidate misses a diagnosis or struggles with a difficult viva question at some stage. What matters is demonstrating that you can recognise important abnormalities, think logically and practise safe radiology.

If you keep one message from this article, let it be this:

Safe reporting is a safe pass.

Dr Niharika Prasad MD, FRCR