The mnemonic : MR.THAMPA
What does it help in remembering : It helps us in remembering the differential diagnosis for a ring enhancing lesion on CT Brain.
Expand it : M = Metastatic tumors
R = Radiation necrosis
T = Tuberculoma
H = Hematoma
A = Aneurysm
M = Multiple Sclerosis
P = Primary Brain Tumor
A = Abscess.
To put it in a textbook way :
Primary brain tumor (glioblastoma), Metastasis (especially post chemotherapy), Abscess – ring is smooth and regular and usually thinner on the medial side; in HIV most common are toxoplasma, crytococcus, and TB (Toxoplasmosis is most common), Multiple sclerosis, Resolving hematoma (10-21 days), Tuberculoma, Radiation necrosis, Postoperative change, Aneurysm
What does it help in remembering : It helps us in remembering the differential diagnosis for a ring enhancing lesion on CT Brain.
Expand it : M = Metastatic tumors
R = Radiation necrosis
T = Tuberculoma
H = Hematoma
A = Aneurysm
M = Multiple Sclerosis
P = Primary Brain Tumor
A = Abscess.
To put it in a textbook way :