Radiopaedia Blog

24th Sep 2013 10:58 UTC

Radiology Quiz #2

What is this sign called, and what treatment of what condition causes it?

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  • Corkscrew sign - describes the spiral appearance of the distal duodenum and proximal jejunum in the setting of midgut volvulus on contrast studies. In patients with congenital malrotation of the midgut, the distal duodenum and proximal jejunum do not cross the midline and instead pass inferiorly. These loops are predisposed to twist on their shortened mesentery creating the classic corkscrew appearance of midgut volvulus.

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21st Sep 2013 12:34 UTC

Radiology Quiz #1

35yo female with pain after minor trauma. What is the 'not to be missed' diagnosis?   

 

 

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21st Sep 2013 08:35 UTC

Hyperdense MCA sign

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1.  Middle Cerebral Artery Infarction 

  • learn how to identify the early signs of an MCA infarct on CT. What is the hyperdense MCA sign?

2.  Appendicitis 

  • learn how to diagnose this important surgical emergency with both CT and ultrasound. How thick is too thick?

3.  Extradural Haemorrhage 

  • learn the classic appearance of an extradural haematoma and the simple rules that can help distinguish it from subdural blood.

 4.  Acute Cholecystitis 

  • learn the typical ultrasound and CT features of cholecystitis and how to identify gallstones. What gallbladder wall thickness is considered too thick? 

 5.  Lobar Collapse 

  • learn how to recognise the 5 different types of pulmonary lobar collapse, an essential skill for any clinician. Which is the hardest one to detect? Collapse of which lobe will obscure the left hemi-diaphragm? 
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