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Differential diagnosis for toxic/metabolic encephalopathies - Patterns on Brain Imaging

Cynthia Czawlytko, MD @drcyncity

#Differential #diagnosis #encephalopathies #encephalopathy
Differential diagnosis ... - Patterns on Brain ... imaging #patterns #MRI ... #Neurology #pathology ... #diseases #radiology
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Compatible syndrome + MRI ... RingEnhancing #Lesions #Brain ... #differential # ... diagnosis #causes ... #radiology #neurology
Causes of Seizures - Differential Diagnosis Algorithm
Unprovoked - Epilepsy:
 • Focal: Simple, Complex
 • Generalized: Absence,
Causes of Seizures ... - Differential ... injury • Infectious ... Encephalitis, Brain ... #neurology
Glomerulonephritis - Differential Diagnosis Framework
ANCA:
 • C-ANCA: GPA (Wegener's)
 • P-ANCA: Microscopic Polyangiitis, Eosinophilic GPA (Churg
Glomerulonephritis - Differential ... Eosinophilic GPA (Churg Strauss ... Mediated: • ↓C3: Infection-Related ... #diagnosis #nephrology ... #causes
Algorithm for evaluating multiple ring-enhancing lesions in immunocompetent (HIV negative)

#ringenhancing #lesions #cns #brain #diagnosis #differential #algorithm
#lesions #cns #brain ... #diagnosis #differential ... #algorithm #causes ... #radiology #neurology
Pseudobulbar Affect
Characteristics (These episodes usually cause distress and impairment in occupational or social functioning):
 - Extreme
episodes usually cause ... distress and impairment ... Strokes, Traumatic Brain ... Pseudobulbar #Affect #neurology ... #differential #
Alice in Wonderland Syndrome
What? Metamorphophsia - Distortions of the visual perceptions with changes in size (micro
(Many causes!) ... * (most common cause ... ) • Infection ( ... encephalitis) • Brain ... #differential
MAGIC DR – a handy mnemonic used to remember the potential causes of a cerebral ring
the potential causes ... eg. tumefactive MS ... necrosis #Diagnosis #Radiology ... MAGICDR #DRMAGIC #Differential ... RingEnhancing #Lesions #Brain
Demyelinating Diseases - Differential Diagnosis
 • Inflammatory: MS, ADEM, NMO, Paraneoplastic, Sjogren's, Polyarteritis nodosa, SLE
 •
Demyelinating Diseases - Differential ... Inflammatory: MS ... nodosa, SLE • Infectious ... #Diagnosis #causes ... #neurology
BEE Syndromes - Non-inflammatory Causes

Immune-mediated conditions affecting the Brain, Eye, and Ear

Visual or auditory symptoms in
Non-inflammatory Causes ... affecting the Brain ... neuropathy (LHON) plus MRI ... consistent with MS ... noninflammatory #differential