49 results
Estimated Timeline for Detection of SARS-CoV-2 Infection Relative to Symptom Onset

#COVID19 #SARSCOV2 #PCR #Serology #Antibodies #Antibody
of SARS-CoV-2 Infection ... COVID19 #SARSCOV2 #PCR ... #Serology #Antibodies ... Antibody #Laboratory #Testing
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
HIV / AIDS - Differential ... status, and focal neurologic ... of serum CrAg testing ... comparable to CSF testing ... #differential #
Demyelinating Diseases - Differential Diagnosis
 • Inflammatory: MS, ADEM, NMO, Paraneoplastic, Sjogren's, Polyarteritis nodosa, SLE
 •
Demyelinating Diseases - Differential ... nodosa, SLE • Infectious ... Neurosyphilis, PML ... Demyelinating #Diseases #Differential ... Diagnosis #causes #neurology
Antinuclear Antibody Testing - Nuclear and Cytoplasmic Patterns
Nuclear Patterns:
 • Homogeneous pattern: 
   -
Antinuclear Antibody Testing ... Smith, Sm/RNP, Scl ... body-like: - Neurologic ... Antinuclear #Antibody #Testing ... Cytoplasmic #Patterns #differential
Some of the techniques used for Antenatal Diagnosis

Amniocentesis 
 - Chromosome/micro-array and DNA analysis 
 -
analysis - Fetal infection ... — PCR Fetal blood ... serology - Fetal ... — PCR - Enzyme ... #Antenatal #Testing
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
Positive Coombs testing ... setting - Mycoplasma ... younger pts) Differential ... Hemoglobinuria (PCH ... hemolytic #anemia #hematology
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
toxo IgG • CNS PCR ... multiple lesions Infectious ... Lesions #Brain #differential ... diagnosis #causes #radiology ... #neurology
Eosinophil Disorders Testing Algorithm
INDICATIONS FOR TESTING:
 • Peripheral blood eosinophilia/hypereosinophilia uncovered incidentally during medical evaluation or
INDICATIONS FOR TESTING ... drug reaction, infection ... Strongyloides infection ... Disorders #Algorithm #Differential ... #diagnosis #hematology
Posterior Fossa Abnormalities - Neuroradiology Differential Diagnosis
 - Mega Cisterna Magna
 - Pouch Cyst
 - Arachnoid
Neuroradiology Differential ... Devpriyo Pal @drdevrad ... Abnormalities #Pathology #Neurology ... #radiology
Causes of Seizures - Differential Diagnosis Algorithm
Unprovoked - Epilepsy:
 • Focal: Simple, Complex
 • Generalized: Absence,
of Seizures - Differential ... brain injury • Infectious ... Neurocysticercosis, PML ... Prophyria #Seizures #Differential ... Algorithm #Causes #neurology