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14 Cards in this Set
- Front
- Back
Cell Types in central and peripheral distribution |
Image Time Between Normal Adenohypophysis and Adenoma |
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24% Nonfunctioning |
Pituitary Macroadenoma Mass effect No Endocrine Sxs Daming effect on stalk |
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Adenoma Hemorrhagic |
RX for Pit Adenoma Radiation Necrosis involving Temporal Lobes!! |
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RCC Like Colloid Cyst, Can Show Different Signal Due To Protein/Hemorrhage Dark On T2- limits Dx to RCC |
Occasionally fluid fluid level is inferior. ?viscous nature of the RCC? |
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Adamantinomatous First Decade
Papillary Fifth and Sixth Decade Less Cystic Non Ca+ |
Sarcoid Small Gland Due To Chronic Effect of Sarcoid Lesion |
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Large Gland Pregnancy High Blood Flow Demand --Postpartum Hypotensive Episode Gland Infarcted |
Postpartum Necrosis Sheehan Syndrome Delayed Pit Insuff Up to 10-20 Yrs Diff Dx: Lymphocytic Hyp, Apoplexy, Pit Abscess |
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Sheehan Acute to Chronic |
Sheehan Chronic May Present Chronic Endocrine May Present With Empty Sella |
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Clinical History: Evaluate "Sella Mass"
Aneurysm!!! |
Not Bright on MRA source Image-- but Positive on CTA for Aneurysm |
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Ecchordosis Physoliphora- Small Posterior Bar on CT exam |
Chordoma May not enhance so much Bright T2 No whorls of Ca++ like chondrosarcoma |
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Notochord Trajectory 1. Ecchordosis Physoliphora 2. Chordoma 3. Tornwaldt Cyst Nasopharynx |
Chondrosarcoma Bright T2 Ringlets Ca++ Arise Petro-Occipital Synchondrosis Not Notochord |
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Chondrosarcoma High ADC Chordoma Intermediate ADC Poorly Diff Chordoma Low ADC |
Skull BaseMeningioma In this location May Have Spiculated Appearance on Bone- With Expansion of bone-- think meningioma instead or malignant process |
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LCH: Lytic Skull Base Concave Edges |
Fibrous Dysplasia May Be A Challenge in Skull Base (Cystic Change) 10-25% Monostotic FD Affects Skull and Face Bones >50% in Polyostotic |
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McCune-Albright Syndrome Fibrous Dysplasia 1. Polyostotic 2. Cafe Au Lait Spots 3. Autonomous Endocrine Hyperfunction |
Metastatic Breast Cancer Parasellar Mimic Meningioma
Mets Skull Base May Be Painful, CN sxs |
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Lymphoma
Mimics Meningioma |
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