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

Create new question

681 results found

Question 464

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

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 466

An elderly, otherwise well, individual presents with a headache and is investigated with an MRI. What is the most likely diagnosis?

Question 468

In adults with herpes simplex encephalitis, what is the most common pattern of cerebral involvement?

Question 469

Which of the following features is helpful in distinguishing herpes simplex encephalitis from middle cerebral artery infarction?

Question 470

Pituitary adenomas are most likely...

Question 471

Secretory (hormone producing) pituitary macroadenomas are most likely to secrete...

Question 472

The secretion of which anterior pituitary hormone is tonically inhibited by a hypothalamic hormone?

Question 473

Prolactin inhibitory hormone released by the hypothalamus is actually...

Question 474

Which of the following hormones is secreted by the posterior lobe of the pituitary gland?

Question 475

Pituitary macroadenomas are most likely to cause which of the following visual field defect?

Question 476

Which of the following antibodies is most commonly associated with autoimmune encephalitis?

Question 477

Which tumor is the most common underlying cause of patients with autoimmune encephalitis?

Question 478

As a general rule, patients with antibodies causing autoimmune encephalitis (limbic encephalitis) which target intracellular antigens are more likely to...

Question 479

A 55-year-old woman, previously well, presents with 4-month history of rapid decline in cognitive function. She is imaged with an MRI. What is the most likely diagnosis?

Question 480

Gliomatosis cerebri growth pattern is defined as diffuse involvement how many lobes of the brain?

Question 481

In the 2016 (revised 4th edition) of the WHO classification of CNS tumors, gliomatosis cerebri growth pattern was most considered to most commonly occur in...

Question 482

According to the 2021 WHO classification of CNS tumors (5^th edition), gliomatosis cerebri is considered a...

Question 501

A 50-year-old woman presents with a gradual decline in cognitive function and is investigated with an MRI. Which of the following most likely describes their cognitive deficit?

Question 502

A 35-year-old woman, previously well, developed persistent headaches and was imaged with a contrast-enhanced MRI. What is the most likely diagnosis?

+Systems

+Article Sections

+Sort By

ADVERTISEMENT: Supporters see fewer/no ads