Intracranial Tumours, Meninges and Pituitary
Characterise intra-axial, extra-axial, ventricular, meningeal and sellar masses and treatment effects.
How to prepare for the current Final FRCR Part A
Build general-radiology breadth, then practise integrating clinical context, anatomy, multimodality findings, technique and management to select the single best answer.
Core concepts
Concept 1
Localise compartment and origin, then integrate age, signal, diffusion, susceptibility, enhancement, perfusion and spread.
Exam cue: Localise the abnormality and identify the organ, compartment, tissue or vessel before naming a diagnosis.
Concept 2
Use tailored MRI with CT for bone or acute questions, advanced techniques for selected characterisation and systemic imaging where appropriate.
Exam cue: Use age, clinical setting, tempo and the complete multimodality pattern to rank the most likely explanation.
Concept 3
Report mass effect, hydrocephalus, vascular involvement, dissemination and surgically important anatomy.
Exam cue: Select the examination or intervention that changes management while accounting for contrast, radiation, access and urgency.
Concept 4
Apply normal and variant anatomy, modality technique, image quality and relevant imaging science to intracranial tumours, meninges and pituitary.
Risk pitfalls and guardrails
Assigning a tumour type from enhancement alone or mistaking treatment-related change for progression without interval and advanced-imaging context.
Guardrail: Do not anchor on one remembered sign; verify age, localisation, distribution, technique, alternatives and management consequence.
Do not choose a merely plausible SBA option before comparing every option with the full clinical and imaging context.
Guardrail: Re-read the command word and compare every option; the task is to select the best available answer, not the first plausible one.
Memory anchors
Extra-axial clues
Broad dural contact, CSF cleft, displaced cortex and adjacent bone change support an extra-axial origin.
Diffusion restriction
It reflects limited water motion and is not specific: consider hypercellular tumour, abscess, infarction and other causes.
Sellar mass report
Describe optic pathways, cavernous sinuses, carotids, pituitary tissue and suprasellar extension.
Post-treatment brain
Use timing, steroid response, perfusion, diffusion, spectroscopy and serial change; no single feature is absolute.
Checkpoint rule
Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.
Knowledge Check (after reading)
Short check-up to confirm understanding of this module.
Check-up Questions
MRI shows an extra-axial mass with a broad dural base, CSF cleft and adjacent hyperostosis. What is the most likely diagnosis?
A patient has unilateral hearing loss. MRI shows an enhancing cerebellopontine-angle mass extending into and widening the internal auditory canal. What is the diagnosis?
Answer all questions to submit.
Next step personalized recommendations
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Move forward only after this module is stable.
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