Glossary of case review brain
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- Ring enhancing lesion
Glioma and other primary CNS neoplasms (eg, lymphoma)
Demyelination (multiple sclerosis, acute disseminated encephalomyelitis)
- DDx cavernous sinus mass
- Cavernous sinus MAMS
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.
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