Radiopaedia Blog : Mnemonic

26th Oct 2013 11:20 UTC

MAGIC DR

There are many potential causes of a cerebral ring enhancing lesion and remembering them all can prove tricky. Well, that is unless you know the very handy and aptly named MAGIC DR mnemonic. 

Although you can’t possibly know by looking at the single images, for what it is worth, the above cases are; A = metastasis, B = abscess, C = radiation necrosis, D = GBM, E = demyelination, F = contusion.

27th Sep 2013 21:48 UTC

CAVITY - mnemonic

CAVITY - a useful mnemonic for the causes of a cavitating lung mass.

C = cancer 
A = autoimmune granulomas
V = vascular 
I = infection
T = trauma
Y = youth 

Case 1 is an example of a cavitating primary lung cancer. Case 2 shows a thick walled cavity in a patient with Wegener's granulomatosis. Case 3 is an example of tuberculosis. Case 4 is of congenital pulmonary airways malformation (CPAM) in a neonate. 

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