Andrew Dixon on Radiopaedia.org

Andrew Dixon

MBBS (Hons) FRANZCR

Andrew is a Consultant Radiologist at the Alfred Hospital in Melbourne, Australia. He has primary subspecialty expertise in neuroradiology, with secondary interests in musculoskeletal imaging and trauma radiology. 

He is a keen radiology educator, having achieved international recognition for his courses including Radiopaedia's Trauma Radiology Course, Emergency Radiology Course and Medical Imaging Anatomy Course. He founded the Radiology Channel on YouTube.

He is currently Radiopaedia's academic director and was co-convenor of the Radiopaedia Virtual Conference in 2020, 2021, 2022 and 2023. His favourite emoji is 🍍

Andrew is a director of Radiopedia Events Pty Ltd

Disclosures:
  • Nothing to disclose
315 results
Question

Question 1104

Which of the following statements is most correct with regards to an incidental adrenal mass?

Question

Question 1111

According to the 2017 international consensus, which of the following pancreatic ductal adenocarcinoma imaging scenarios is in keeping with a borderline resectable tumour?

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Question 1112

Which is true regarding the "two-slice-touch" rule for meniscal tear diagnosis on MRI?

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Question 1113

Which is NOT true of a ranula? 

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Question 1114

In the setting of progressive massive fibrosis pattern on CT, which of the following would most strongly favour sarcoidosis over silicosis as the underlying cause? 

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Question 1115

Humeral radiograph of a 12-year-old male with Ewing sarcoma. Which of the following aggressive features is NOT seen on this image? 

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Question 1119

Which of following is NOT true regarding calcium pyrophosphate deposition disease (CPPD)?

Question

Question 1130

Which accounts for the majority of the high density crystal deposition seen on this CT?

Question

Question 1154

A 13-year-old boy presents after an inversion injury to his ankle. X-ray reveals a cortically-based 20 mm lucent lesion with a thin sclerotic rim and narrow zone of transition within the distal tibial metadiaphysis. This lesion most likely represents which of the following?

Question

Question 1155

A 14-year-old girl presents after hyperextending her knee. X-ray reveals a 2.5 x 4.0 cm well-defined, expansile, lucent lesion within the proximal fibular metaphysis. There is cortical thinning but no fracture or periosteal reaction. This lesion most likely represents which of the following?

Question

Question 1156

Which is true regarding aneurysmal bone cysts?

Question

Question 1165

Which is true of physiologic periostitis?

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Question 1166

Which is true of focal periphyseal oedema (FOPE)?

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Question 1167

Which is NOT a typical MRI feature of myositis ossificans at 4 weeks after suspected inciting trauma? 

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Question 1168

Which is NOT true regarding fibromatosis colli?

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Question 1169

Which is true of dorsal defect of the patella?

Question

Question 1170

Which is true of post-traumatic bone cysts in children?

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Question 1171

Which is NOT true of distal femoral avulsive irregularity?

Question

Question 1172

Which is NOT true of non-ossifying fibroma? 

Question

Question 1173

Which is true of muscle hernias? 

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