Core Flashcards
1
Q
Lymphoma, primary CNS
A
Large B-cell most commonly
Melts away with chemotherapy, recurs aggressively
Highly cellular, periventricular (low T2, high on DWI)
Enhancing mass in immunocompetent, periventricular, frontal lobes, basal ganglia
Ring-enhaning mass in immunocompromised (differential toxoplasmosis)
2
Q
Corpus callosum mass
A
Lymphoma, GBM, demyelination
3
Q
Immunocompromised, CNS lymphoma v toxoplasmosis
A
Emperical treat Thalium - lymphoma takes up PET - lymphoma avid Perfusion - lymphoma increased CBV Lymphoma high choline on spectroscopy
4
Q
Secondary CNS lymphoma
A
Tends to involve meninges
