25 results
Algorithm for evaluating multiple ring-enhancing lesions in immunocompetent (HIV negative)

#ringenhancing #lesions #cns #brain #diagnosis #differential #algorithm
immunocompetent (HIV negative ... ringenhancing #lesions #cns ... #brain #diagnosis ... differential #algorithm #causes ... #radiology #neurology
Causes of Relative Bradycardia - Note the propensity for intracellular organisms.
Infectious: 
Legionella, Psittacosis, Q fever, Typhoid
Causes of Relative ... : ß-blockers, CNS ... #bradycardia #Causes ... #differential #diagnosis ... infectiousdiseases #table
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Chorioretinitis • Diagnosis ... RingEnhancing #Lesions #Brain ... #differential #diagnosis ... #causes #radiology ... #neurology
Alice in Wonderland Syndrome
What? Metamorphophsia - Distortions of the visual perceptions with changes in size (micro
CNS: parietal ... (Many causes!) ... encephalitis) • Brain ... Wonderland #Syndrome #diagnosis ... #neurology #differential
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
Nerve Palsy • CN ... Skew Deviation Casey ... #Localization #ophthalmology ... #neurology #differential ... #diagnosis #ocular
Gerstmann Syndrome
1) Finger agnosia - Inability to name their own fingers, affecting both sides
2) Right-left confusion
patient is still able ... to copy Causes ... : Stroke (main cause ... ), Traumatic Brain ... #diagnosis
CNS Manifestations of Systemic Lupus Erythematosus (SLE)

Clinical Manifestations: Demyelinating Syndrome, Headache, Movement disorders, Seizure disorders, Aseptic
CNS Manifestations ... autoantibodies that will cause ... thrombosis and/or blood-brain ... permeability Diagnosis ... #neurology #rheumatology
BEE Syndromes - Immune-mediated conditions affecting the brain, eye, and ear

Visual or auditory symptoms in conjunction
affecting the brain ... nervous system (CNS ... Inflammatory causes ... BEE #Syndromes #neurology ... #differential #diagnosis
Differentiating NBTE from Infective Endocarditis
No pathognomonic signs/symptoms or echo features that are specific to NBTE, and
is required for diagnosis ... valves • MRI brain ... in up to 30% of cases ... often seen • MRI brain ... #table
Mydriasis and Miosis - Differential Diagnosis Framework

Causes of Mydriasis:
Dilated pupils (mydriasis) more than 7mm
 • Unilateral
- Differential Diagnosis ... Unilateral Mydriasis: CN ... - Fixed: Brain ... #differential #diagnosis ... #ophthalmology