Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
28 Cards in this Set
- Front
- Back
Ring enhancing lesion
|
MAGICDR
Metastases Abscess Glioma and other primary CNS neoplasms (eg, lymphoma) Infarction Contusion Demyelination (multiple sclerosis, acute disseminated encephalomyelitis) Resolving hematoma/radionecrosis |
|
DDx cavernous sinus mass
|
Cavernous sinus MAMS
Meningioma Aneurysm Mets Schwannoma (CN 3-6) |
|
Cavernous sinus mass surrounding the cavernous portion of ICA and compressing it
|
MENINGIOMA is what does this
|
|
Temporal lobe lesion with cystic and solid component
|
PXA, and ganglioglioma as well as JPA, which can be anywhere
|
|
brain tumor with calcification
|
Oligodendroglioma, ependymoma, meningioma, choroid plexus tumor, craniopharyngioma
|
|
calcified mass supratentorial with invovement of brain, extension to ventricle
|
ependymoma, oligo
|
|
location of Interventricular meningioma
|
trigone of lateral ventricle
|
|
Hemorrhagic brain mets
|
The 2 most common (lung, breast), the 2 most aggressive (renal cell, thyroid), the 2 most colorful (melanoma, choriocarcinoma)
|
|
differential diagnosis for multiple enhancing brain masses
|
metastatic disease, abscess, TB, demyelinating disease, lymphoma
|
|
lymphoma appearance
|
homogeneous tumors so homogeneous appearance. Low signal on T2. ALWAYS CONTACTS VENTRICULAR SURFACE. OR DURAL SURFACE.
|
|
Intraaxial lesion contacting dura with clear dural enhancement
|
Lymphoma or metastases
|
|
Low T2 signal lesions
|
cellular tumors -- lymphoma, medulloblastoma/PNET, Pineoblastoma, meningioma
|
|
Septum pellucidum based mass
|
Subependymoma, septal low grade glioma, central neurocytoma.
|
|
How differentiate these 3?
|
Central neurocytoma enhances (albeit irregularly, in nodular fashion). Subependymoma and low grade gliomas DO NOT enhance.
|
|
Child with Mass in reaching the fourth ventricle
|
medulloblastoma versus and Tamone.
|
|
Differentiating these two?
|
a tender moment has tumor extension through fourth ventricular outflow pathways. Medulloblastoma never does this. BOTH in results in CSF dissemination, however, medulloblastoma is more common for doing this.
|
|
Pediatric posterior fossa mass, with satellite lesions
|
think medulloblastoma.
|
|
Tumor with CSF dissemination
|
pineoblastoma, medulloblastoma/PNET, choroid plexus carcinoma, and ependymoma
|
|
pediatric lateral ventricular mass
|
choroid plexus papilloma
|
|
choroid plexus papilloma in adults
|
posterior fossa
|
|
Mass in body of lateral ventricle
|
choroid plexus tumor (papilloma or carcinoma), metastatic disease. Unlikely to be meningioma these occur at trigone/atrium.
|
|
Suprasellar cistern mass
|
don't know what it is? If it has calcium in it or high T1 signal, its a cranio.
|
|
Mass positive on DWI
|
Epidermoid cyst, abscess, mucinous adenoCA metastasis, Cellular tumors (lymphoma, PNET, meningioma)
|
|
Big ugly mass
|
DID THIS PATIENT GET RADIATION
|
|
Midline mass
|
DERMOID. Make sure its not a dermoid. Can happen just below lateral vents and when they rupture, fat goes into the vents
|
|
large area of edema in temporal lobe with increased DWI
|
THINK HERPES on boards. Not stroke.
|
|
Tumefactive demyelinating lesion
|
Can enhance bright. Not synonomous with MS.
|
|
Brain mass
|
Think about things besides brain TUMOR. Think about MS, think about herpes, think about abscess, think about dermoids, etc.
|