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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 2989

Which statement best characterizes macroprolactin?

Question 1789

In the setting of ischemic strokes, the return of DWI signal to normal after early reperfusion (i.e. within 3 to 6 hours of onset) is occasionally encountered and is known as...

Question 1786

The recurrent artery of Heubner usually arises from the...

Question 1455

In the accompanying MRI image which letter indicates the maxillary division of the trigeminal nerve (CN Vb)?

Question 2846

Which of the following tumors is LEAST likely to be included in a list of "long term epilepsy-associated tumors"?

Question 562

Using immunohistochemistry, dysembryoplastic neuroepithelial tumors (DNETs) are usually positive for all of the following EXCEPT:

Question 2841

Which of the following metabolites accumulates in patients with isocitrate dehydrogenase (IDH) mutations and results in an increased likelihood of seizures?

Question 326

In a patient with a diagnosis of glioblastoma (GBM), which of the following are poor prognostic features?

Question 2848

Which of the following features is LEAST likely encountered in a pleomorphic xanthoastrocytoma (PXA)?

Question 2847

Which of the following features would be LEAST expected in a polymorphous low-grade neuroepithelial tumor of the young (PLNTY)?

Question 2845

Which of the following is FALSE regarding gangliogliomas?

Question 2844

Which of the following features is helpful in distinguishing a dysembryoplastic neuroepithelial tumor (DNET) from a multinodular and vacuolating neuronal tumor (MVNT)?

Question 2843

What is the kindling phenomenon in the context of epilepsy?

Question 2842

A lesion in which of the following locations is LEAST likely to result in seizures?

Question 613

Which of the following is a good prognostic factor for glioblastoma (GBM)?

Question 465

What is the approximate expected apparent diffusion coefficient (ADC; x 10^-6 mm²/s) of the enhancing component of primary CNS lymphoma?

Question 464

What is the approximate expected apparent diffusion coefficient (ADC; x 10^-6 mm²/s) of cerebral spinal fluid (CSF)?

Question 463

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

Question 1161

Ependymomas are most commonly encountered in the...

Question 1777

In patients with ischemic infarcts, which of the following sequences is most sensitive for the presence of hemorrhagic transformation?

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