21 results
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
CNS Ring-Enhancing ... + toxo IgG • CNS ... 30% present w/ CNS ... : • CNS Lymphoma ... #Brain #differential
CNS Ring-Enhancing Lesions - Differential Diagnosis
 • Infections: Cerebral abscess (bacterial, fungal, parasitic), Neurocysticercosis, Tuberculoma, Cerebral
CNS Ring-Enhancing ... Lesions - Differential ... multiforme, Primary CNS ... StanfordChiefs #CNS ... #Differential #
Algorithm for evaluating multiple ring-enhancing lesions in immunocompetent (HIV negative)

#ringenhancing #lesions #cns #brain #diagnosis #differential #algorithm
ring-enhancing lesions ... ringenhancing #lesions ... #cns #brain #diagnosis ... #differential # ... algorithm #causes #radiology
Alice in Wonderland Syndrome
What? Metamorphophsia - Distortions of the visual perceptions with changes in size (micro
CNS: parietal ... • Infection (e.g ... encephalitis) • Brain ... lesions (e.g. stroke ... diagnosis #neurology #differential
MAGIC DR – a handy mnemonic used to remember the potential causes of a cerebral ring
ring enhancing lesion ... Demyelinating disease (eg ... necrosis #Diagnosis #Radiology ... MAGICDR #DRMAGIC #Differential ... #Brain
Causes of Relative Bradycardia - Note the propensity for intracellular organisms.
Infectious: 
Legionella, Psittacosis, Q fever, Typhoid
: ß-blockers, CNS ... lesions, Lymphomas ... bradycardia #Causes #differential ... infectiousdiseases #table
Approach to Headaches - Differential Diagnosis Algorithm

Red flags (PHANTOMS):
 • Pattern change, progressively worse, papilledema
 •
to Headaches - Differential ... Space-occupying brain ... lesionCNS ... infection (e.g., ... #Headache #Differential
Hyponatremia - Differential Diagnosis by Mechanism
Decr Blood Pressure (“Decr Effective Circulating Volume”) 
 - Volume depletion
Hyponatremia - Differential ... the lung) - CNS ... pathology (e.g. ... #Hyponatremia #Differential ... #Diagnosis #Table
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Weakness - Differential ... pulmonary etc) • CNS ... nervous system: Brain ... • Infectious: Brain ... electromyographic (EMG
Etiologies of Hypernatremia - Differential Diagnosis
GI losses / Insensible losses
Sodium Overload
Transcellular Movement of Water
Central Diabetes Insipidus
Hypernatremia - Differential ... Malignancy - CNS ... - Medications (e.g ... Hypernatremia #Differential ... #Diagnosis #Table