183 results
Eosinophils (Eos) and hypereosinophilia (HE)
Caused by eosinophilopoietic cytokines
Common causes:
 - Drug reaction
 - Helminth infection
 -
cytokines Common causes ... reaction - Helminth infection ... disease Rare causes ... CD3-CD4+ T cells ... aspergillosis - Viral infections
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
Pulmonary Infections ... spp, Atypical infection ... Penicillium marneffei Parasitic ... bronchoscopy Infectious ... #Pulmonary #Infections
Causes of Acute Onset Fever - Differential Diagnosis Algorithm
Viral:
 • Rhinovirus
 • Influenza Virus
 • Parainfluenza
Causes of Acute ... eg.malaria) • Other parasites ... Organ Specific Infection ... Urinary Tract Infection ... Diagnosis #Algorithm #causes
Causes of Fever of Unknown Origin (FUO) - Differential Diagnosis Algorithm
Neoplasm:
• NHL
• Hodgkin's lymphoma
• Leukemia
• Solid
Causes of Fever ... • Trauma Non-infectious ... • Infectious ... malaria) • other parasites ... Diagnosis #Algorithm #causes
Strongyloides fuelleborni Lifecycle
Free-Living Cycle
1) Eggs containing rhabditiform larvae passed in feces.
2) Rhabditiform larvae hatch in environment.
Parasitic Cycle ... become adults. 8) Parasitic ... intestine 9) Parasitic ... #diagnosis #pathophysiology ... infectiousdiseases #cdc
NAACP mnemonic for the major causes of Eosinophilia 
N = Neoplasia (CML, Hodgkins lymphoma) 
A =
for the major causes ... disorders P = Parasite ... infections #Eosinophilia ... #Differential #Causes
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
Lymphohistiocytosis (HLH) Pathophysiology ... Triggering factor (infection ... →Activation of CD8 ... salmonella, ...), Parasites ... Drugs, Unknown cause
Causes of Encephalopathy - Differential Diagnosis Algorithm
Hyperacute:
 - Primary Neurologic: Vascular (IS, ICH), Seizure, Migraine, Trauma
Causes of Encephalopathy ... demyelination), Infectious ... Inflammatory, Infectious ... (fungal, TB, parasitic ... Diagnosis #Algorithm #Causes
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Toxoplasmosis (CD4 ... splenomegaly Other infections ... multiple lesions Infectious ... • Nocardia • Parasitic ... differential #diagnosis #causes
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Causes of Culture ... antibiotics as a cause ... endemic fungi - Parasitic ... Dracunculiasis - Non-Infectious ... Blastomycosis - Non-Infectious