32 results
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
CNS Ring-Enhancing ... Chorioretinitis • Diagnosis ... • Nocardia • Parasitic ... #Brain #differential ... #diagnosis #causes
CNS Ring-Enhancing Lesions - Differential Diagnosis
 • Infections: Cerebral abscess (bacterial, fungal, parasitic), Neurocysticercosis, Tuberculoma, Cerebral
CNS Ring-Enhancing ... Lesions - Differential ... Diagnosis • Infections ... bacterial, fungal, parasitic ... #Differential #Diagnosis
McDonald Criteria for Diagnosis of Multiple Sclerosis
 • 2 or more attacks, 2 or more lesions
McDonald Criteria for Diagnosis ... implicating a different CNS ... implicating a different CNS ... in space in the brain ... McDonald #Criteria #Diagnosis
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
CENTRAL FACIAL / NASAL LESIONS
Bacteria:
 • Leprosy (saddle nose deformity)
 • Tuberculosis (lupus vulgaris)l
 • Endemic
FACIAL / NASAL LESIONS ... Blastomycosis Parasite ... Facial #Central #Lesions ... #infections #diagnosis ... #infectiousdiseases
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
- Differential Diagnosis ... negative culture Brain ... endemic fungi - Parasitic ... #Differential #Diagnosis ... #InfectiousDiseases
Problem Representation - Approach to the Infectious Disease Patient

Who: Patient age and host/risk factors (such as
illness script (e.g. brain ... and lung lesions ... febrilepodcast@gmail.com #InfectiousDiseases ... #History #HPI #Diagnosis
Causes of Relative Bradycardia - Note the propensity for intracellular organisms.
Infectious: 
Legionella, Psittacosis, Q fever, Typhoid
: ß-blockers, CNS ... lesions, Lymphomas ... #differential #diagnosis ... #infectiousdiseases
Concurrent Brain and Lung Lesions
 • Bacteria: Nocardia spp, Strep anginosus, Staph aureus, Klebsiella pneumoniae (hypervirulent),
Concurrent Brain ... and Lung Lesions ... Coccidioides • Parasite ... #Differential #Diagnosis ... #causes #infectiousdiseases
Concurrent Brain and Lung Lesions
 • Bacteria: Nocardia spp, Strep anginosus, Staph aureus, Klebsiella pneumoniae (hypervirulent),
Concurrent Brain ... and Lung Lesions ... Coccidioides • Parasite ... #Differential #Diagnosis ... #causes #infectiousdiseases