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Sunday, 25 December 2016

Amyotrophic Lateral Sclerosis

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•         MC form of motor neuron disease. •         Progressive, neurodegenerative disorder. •         Upper (hyper reflexia, spast...

Huntington Disease

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  Findings: Diffuse cortical atrophy w/caudate nucleus and putamen most severely affected Atrophy of caudate nucleus results in charac...
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Patterns of abnormal brain enhancement

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Pachy meningeal Enhancement (Intracranial Hypo tension) Lepto meningeal   Enhancement  causes: Menigitis, SAH, Metastases ...
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NF1

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Findings: Multiple T2 bright lesions in the basal ganglia and dentate nuclei = “NF spots” Bilateral optic nerve enlargement (Gliom...

Persistent Trigeminal Artery

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Arterial communications between the carotid and vertebrobasilar systems in the fetus may occasionally persist in the adult. A prim...

Hemimegancephaly

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Findings: –        Salient feature is Cerebral hemisphere Asymmetry. –        Abnormal sulcation, poor grey-white diff on right side...

Foix Alajouanine syndrome

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Findings: – Diffuse hyper intense T2 intramedullary cord signal with cord edema, serpentine flow voids along dorsal surface of cord. ...

Carotid Body Paraganglioma

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Findings: Intensely enhancing mass in the carotid sheath that splays the internal and external carotid arteries. DDs: Glomus vaga...

Rathke’s Cleft Cyst

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Findings: High T1 & T2 slightly expansile sellar lesion, displaces normal pituitary tissue. Non-neoplastic remnants of Rathke’s...

Lymphoepithelial cysts in HIV

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• Findings: Enlarged parotid glands containing innumerable small cystic lesions Manifestation in HIV, unclear etiology Soft,...