25 results
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
PCR 50% sensitive ... with lung nodules ... Syphilis • Pyogenic Abscess ... #Brain #differential ... #diagnosis #causes
CNS Ring-Enhancing Lesions - Differential Diagnosis
 • Infections: Cerebral abscess (bacterial, fungal, parasitic), Neurocysticercosis, Tuberculoma, Cerebral
Lesions - Differential ... DiagnosisInfections ... : Cerebral abscess ... Malignancy: Metastases (lung ... #Differential #
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
CNS Infection in ... HIV / AIDS - Differential ... tuberculomas, or abscesses ... Demyelinating disease caused ... #Infections #differential
Infectious Joint Pain - Differential Diagnosis Algorithm 
Polyarticular Join Pain
 • Viral Myalgia
 • Viral Arthritis
Pain - Differential ... Papules & Mucosal Lesions ... Septic Bursitis • Abscess ... #JointPain #MSK ... #Orthopedics #Causes
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... polymicrobial infection ... Abscess Diagnosis ... stable residual lesion ... Abscess Differential
CAVITY – a useful mnemonic for the causes of a cavitating lung mass.

C = cancer
mnemonic for the causes ... pulmonary embolus I = infection ... - pulmonary abscess ... Mnemonic #Cavitary #Lesions ... #Differential #
Causes of Antibiotic Failure - Differential Diagnosis Framework
Diagnosis:
 • Non-Infectious: Malignant, Autoimmune, Drug-related (NMS, serotonin syndrome,
Causes of Antibiotic ... Diagnosis: • Non-Infectious ... Source control (abscess ... Tissue penetration (CNS ... (daptomycin in lungs
Hemoptysis - Differential Diagnosis Framework
Airways: 
 • Bronchitis
 • Bronchiectasis
 • Malignancy: Primary bronchogenic CA, Endobronchial
Fistulas • Dieulafoy lesion ... Parenchyma: • Infection ... westermani, PNA, Lung ... abscess, Aspergillosis ... #causes
Lung Nodule - Differential Diagnosis Algorithm
Nodule on > 2 Years Without a Change in Size:
 •
Lung Nodule - Differential ... Granuloma • Abscess ... Metastases ("cannonball lesions ... Breast, Testicle) Infection ... #Causes #Pulmonary
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Infectious: • Pre-existing ... verrucous) • Lung ... Septic Emboli Cause ... Marantic (NTBE) Differential ... Treat underlying cause