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11 Cards in this Set
- Front
- Back
What Percent of Mets Present With Single Lesion |
40-60% of Mets Present With Single Lesion |
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Colloid Cyst Similar to Bronchogenic Cyst Produces Mucus- Similar to Sinus Secretion- Why density & signal can change on T1, T2 |
Volume Lateral Ventricles 25-30cc Choroid Produces CSF 20ml CSF produced every hour |
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Most Believe Humans Get Cysticercosis From Fecal Contaminated Food Most Likely to Give CNS Infection |
Pork Ingestion Less Likely for CNS More likely to get Intestinal Infection with tapeworms |
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Cannot Have Any Vascular Change in Anaplastic Astro Who III So anyenhancement Perfusion Change of diffuse astrocytoma is GBM WHO IV |
No contrast enhancement-
Think Tumor NOT Edema NOT Vasogenic Edema |
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Biggest Lump of Choroid is in Trigone- Where Most CPP and IV Meningiomas Occur |
Foramen Monroe 1. Colloid Cyst 2. Cysticercosis (HX) 3. Subependymoma/ SEGA |
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Hydro Due to: Overproduction? Increas. Protein/Hemorrhage Decrease Resporption |
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Central Neurocytoma Both Lateral Ventricles |
Germ Cell Primordial Cells Making Tumors |
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Pineal Cyst Not Need Followup If Clinically Enlarged Enough, then they will become symptomatic No sneaking up on you |
Pineal Germ 7:1 M:F Like Sacr coc Teratoma Suprasellar Germinoma M=F |
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Pineal Germ Cell 1. Germinoma 65% 2. Teratoma 18% 3. Other |
5 Y/O Back Pain CSF Spread Tumor from Teratoma |
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RIM PHOMA primary cns lymphoma extends along surface ventricular surface |
High Density of rim of ventricle |
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Periventricular Enhancement Think CMV! |
Thin Enhancement Think Infection Herpes Virus Family Ependymitis! |
