149 results
Causes of Antibiotic Failure - Differential Diagnosis Framework
Diagnosis:
 • Non-Infectious: Malignant, Autoimmune, Drug-related (NMS, serotonin syndrome,
: • Non-Infectious ... NMS, serotonin syndrome ... take 48 hrs for infections ... (daptomycin in lungs ... rxn), Secondary infection
Lemierre’s Syndrome - Pathophysiology

Lemierre’s is an infectious thrombophlebitis of the internal jugular vein.

 - It starts
Lemierre’s is an infectious ... oropharyngeal infection ... abscess, or dental infection ... deep space neck infection ... in the liver, lungs
Fever Patterns - Differential Diagnosis Framework

Continuous Fever:
Temp > 38°C with only 1 degree fluctuation in 24
and bacterial infections ... hours • Viral infections ... • Rickettsiae infections ... Pyogenic/focal infection ... viral source Non-Infectious
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
hypogammaglobulinemia -> increased infection ... history of recurrent infections ... disease • Infectious ... community-acquired infections ... Malignancies • Chronic infections
Reversed Halo Sign - Infectious and Non-Infectious Differential Diagnosis
Definition: A focal rounded area of GGO surrounded
- Infectious and ... Non-Infectious ... consolidation • Infectious ... pneumonia • Non-Infectious ... Dermatomyositis, Lung
Causes of Severe Aortic Regurgitation - Differential Diagnosis
Acute:
 • Leaflet: Traumatic Rupture, Acute Infective Endocarditis, Acute
- Differential Diagnosis ... - Leaflet: • Infection ... Inflammatory: Infectious ... Ehlers-Danlos Syndrome ... #Causes #cardiology
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
- Compatible syndrome ... lesions • 80% with lung ... splenomegaly Other infections ... multiple lesions Infectious ... #causes #radiology
Causes of Diffuse Lung Disease. 
Collagen vascular 
 - Scleroderma 
 - Rheumatoid arthritis 
 -
Causes of Diffuse Lung ... Churg-Strauss syndrome ... cell arteritis Infectious ... chemotherapy #Diagnosis ... #Radiology #Pulmonology
Causes of Pericardial Effusion - Differential Diagnosis
Infectious:
 • Viral: Enterovirus, Herpesvirus, Adenovirus, Parvovirus
 • Bacterial: Mycobacterium
- Differential Diagnosis ... Infectious: ... , Candida Non-Infectious ... - Metastatic: Lung ... #Causes #cardiology
Ear Pain (Otalgia) - Differential Diagnosis Framework

Primary Otalgia 
 - Pain that originates from the ear
associated with infection ... Cerumen impaction Infectious ... (90%), Fungal infections ... • Dental infections ... • Dental infections