3168 results
MAGIC DR – a handy mnemonic used to remember the potential causes of a cerebral ring
the potential causes ... ring enhancing lesion ... – Glioblastoma multiforme ... RingEnhancing #Lesions
Reactive Skin Rash - Differential Diagnosis Algorithm
Reactive erythematous with various morphology
 • Urticaria - Firm /
shins • Erythema Multiforme ... - Target lesions ... Diagnosis #Algorithm #causes
Mucous Membrane Disorder - Differential Diagnosis Algorithm
Erosions/Ulcers/Blisters
 - Primary Dermatologic Diseases
     •
• Erythema multiforme ... syndrome White Lesions ... Diagnosis #Algorithm #causes
Sweet Syndrome

Acute febrile neutrophilic dermatosis (Sweets Syndrome) is a skin condition characterized by fever and inflamed
skin and mucosal lesions ... bluish-red bumps or lesions ... solid, raised lesions ... Causes: - Idiopathic ... gangrenosum - Erythema multiforme
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
potential inciting causes ... Haverhill fever caused ... Erythema multiforme ... classic targetoid lesions ... • Cause is unknown
CNS Ring-Enhancing Lesions - Differential Diagnosis
 • Infections: Cerebral abscess (bacterial, fungal, parasitic), Neurocysticercosis, Tuberculoma, Cerebral
Ring-Enhancing Lesions ... usually multiple lesions ... , Glioblastoma multiforme ... usually solitary lesion ... Ring #Enhancing #Lesions
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Polymorphic skin lesions ... nodosum or erythema multiforme ... Multiple skin lesions ... Legionella: • Nausea ... factor • May cause
Central Distribution, Febrile / Ill:
 - Viral Exanthem 
 - Lyme Disease (erythema migrans) 
Central Distribution,
/ Ill, Target Lesions ... - Erythema multiforme ... Ill, No Target Lesions
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Ring-Enhancing Lesions ... Ring-Enhancing Lesions ... syndrome + MRI lesions ... present w/ CNS lesions ... differential #diagnosis #causes
Upper Motor Neuron (UMN) lesions are lesions occurring anywhere in the CNS from the brain up
The lesion could ... neurotransmitter cause ... cause very different ... This lesion causes ... causes hyporeflexia