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

#ringenhancing #lesions #cns #brain #diagnosis #differential #algorithm
Algorithm for evaluating ... ring-enhancing lesions ... ringenhancing #lesions ... #cns #brain #diagnosis ... #causes #radiology
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 ... @AnnKumfer #CNS
Fever of Unknown Origin (FUO) - Further Workup

 • CNS symptoms? Get an LP and imaging
Fever of Unknown ... Further Workup • CNS ... Returning Traveler’ algorithm ... CTA • Liver lesions ... values supporting hematologic
Childhood Immunization Schedule: Why we immunize
 • Diphtheria Toxin -> URT inflammation causes pseudomembrane with hardened
replicates within CNS ... invade URT & via hematologic ... induces vascular & CNS ... CNS and hematologic ... persists as skin lesions
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
hemorrhagic skin lesions ... deficiencies - PNH ... mountain spotted fever ... Differential #Diagnosis #hematology ... #nonpalpable #dermatology
Approach to Headaches - Differential Diagnosis Algorithm

Red flags (PHANTOMS):
 • Pattern change, progressively worse, papilledema
 •
Differential Diagnosis Algorithm ... and signs (e.g., fever ... Space-occupying brain ... lesionCNS ... Differential #Diagnosis #Algorithm
Causes of Fever in the Immunocompromised Host - Differential Diagnosis Algorithm
Structural Defect - Asplenia/HypospIenism
 • Bacteremia/Septic
Causes of Fever ... Differential Diagnosis Algorithm ... jirovecii • CNS ... Infection #Fever ... #Causes #Hematology
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... Differential Diagnosis Algorithm ... reddish-purple lesions ... Red Flags: • Fever ... #Causes #dermatology
Leukemias Overview: ALL, CML, AML, APML, CLL

Acute leukemias > 20% blasts in the peripheral blood smear
involvement • 30%: CNS ... -> AML: Blast crises ... Headaches, bone pain, fever ... leukostasis syndrome: CNS ... #Leukemia #Hematology
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
known as rat bite fever ... or Haverhill fever ... to have a "wood-grain ... classic targetoid lesions ... differential #diagnosis #dermatology