21st Sep 2013 12:34 UTC
Radiology Quiz #1
21st Sep 2013 08:35 UTC
Hyperdense MCA sign
- Hyperdense MCA sign - increased density within the middle cerebral artery on a non-contrast CT of the brain due to the presence of acute thrombus, in this case on the left. This is one of the few signs that my be identified during the first few hours (hyperacute phase) of MCA territory infarction.
21st Sep 2013 06:20 UTC
Top 5 Radiopaedia articles for medical students
1. Middle Cerebral Artery Infarction
- learn how to identify the early signs of an MCA infarct on CT. What is the hyperdense MCA sign?
- learn how to diagnose this important surgical emergency with both CT and ultrasound. How thick is too thick?
- learn the classic appearance of an extradural hematoma and the simple rules that can help distinguish it from subdural blood.
- learn the typical ultrasound and CT features of cholecystitis and how to identify gallstones. What gallbladder wall thickness is considered too thick?
- learn how to recognize 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?
21st Sep 2013 05:22 UTC
Crazy paving - a CT chest appearance where the combination of septal thickening and alveolar ground-glass opacity creates a pattern that mimics paving. The sign is classically described in pulmonary alveolar proteinosis but can be caused by many other lung pathologies.
20th Sep 2013 03:26 UTC
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