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Frank Gaillard on Radiopaedia.org

Frank Gaillard ◉ ◈

MBBS, MMed, FRANZCR, Hon. FRCR

Associate Professor Frank Gaillard is the Founder and Editor in Chief of Radiopaedia.org, which he began in December 2005. He is also a neuroradiologist at the University of Melbourne Department of Radiology of the Royal Melbourne Hospital in Australia.

In 2021, in recognition of his contribution to radiology education, he was made an Honorary Fellow of the Royal College of Radiologists (UK).

Disclosures:

Nothing to disclose

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681 results found

Question 399

In the accompanying axial image from a non-contrast CT of the brain, the internal capsule is indicated by which letter?

Question 400

In the accompanying axial image from a non-contrast CT of the brain, the thalamus is indicated by which letter?

Question 401

In the accompanying axial image from a non-contrast CT of the brain, the splenium of the corpus callosum is indicated by which letter?

Question 402

In the accompanying axial image from a non-contrast CT of the brain, white matter is indicated by which letter?

Question 403

In the accompanying axial image from a non-contrast CT of the brain, muscle is indicated by which letter?

Question 404

In the accompanying axial image from a non-contrast CT of the brain, cerebrospinal fluid (CSF) is indicated by which letter?

Question 405

In the accompanying axial image from a non-contrast CT of the brain, grey matter is indicated by which letter?

Question 406

In the accompanying axial image from a non-contrast CT of the brain, blood is indicated by which letter?

Question 407

In the accompanying axial image from a non-contrast CT of the brain, bone is indicated by which letter?

Question 442

Lhermitte-Duclos disease is also known as...

Question 443

A 36-year-old otherwise well male, presents with headaches. An MRI of the brain reveals the following lesion. What is the most likely diagnosis?

Question 444

A 20-year-old previously well woman presents with headaches and an MRI is performed. What is the most likely diagnosis?

Question 445

A 25-year-old male, previously well, presents with 3 weeks of increasing headache, and an MRI is performed. What is the most likely diagnosis?

Question 446

An 80-year-old man presents with ataxia and an MRI is performed. What is the most likely diagnosis?

Question 447

The appearance of this sagittal MRI of the brain is most consistent with which of the following diagnoses?

Question 459

A 20-year-old female, previously well, presents with one week of intermittent clumsiness. An MRI is performed. What do you think is the most likely diagnosis?

Question 460

If you were to review the apparent diffusion coefficient (ADC) maps of the adjacent study, what values (measured in units x 10^-6 mm²/s) would you expect to encounter in the area of abnormality?

Question 461

An elderly man presents with ataxia and headache. What is the most likely diagnosis?

Question 462

A 30-year-old man, previously well, presents with ataxia and headache. What is the most likely diagnosis?

Question 463

What is the approximate expected apparent diffusion coefficient (ADC; x 10^-6 mm²/s) of normal white matter?

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