113 results
Cavitary Lung Disease - Differential Diagnosis and Workup Algorithm
Acute / Subacute:
 • Acute Infections: Lung abscess,
- Differential Diagnosis ... Emboli, Fungal Infection ... , NTB, Fungal, Parasitic ... Lung #Disease #Diagnosis ... Algorithm #lesion #pulmonary
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
Pulmonary Infections ... Penicillium marneffei Parasitic ... • CD4 < 200: Pulmonary ... Evaluation: Imaging (CXR ... #workup #diagnosis
CENTRAL FACIAL / NASAL LESIONS
Bacteria:
 • Leprosy (saddle nose deformity)
 • Tuberculosis (lupus vulgaris)l
 • Endemic
Endemic treponemal infection ... Invasive mold infection ... Blastomycosis Parasite ... Central #Lesions #infections ... #diagnosis #infectiousdiseases
Rapidly Growing Mycobacterial Infections

 • Mycobacterium abscessus - Is the most pathogenic and the most likely
Mycobacterial Infections ... likely to cause pulmonary ... infection. ... Mycobacterium #diagnosis ... #differential #infectiousdiseases
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
Differential Diagnosis ... Opacities: • Infectious ... - Disseminated Parasites ... #differential #diagnosis ... #pulmonary #CXR
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
Differential Diagnosis ... : - ANCA-positive ... allopurinol), Infection ... , anti-CCP • CXR ... DAH, rule out infection
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
- Differential Diagnosis ... Dracunculiasis - Non-Infectious ... Blastomycosis - Non-Infectious ... #Differential #Diagnosis ... #InfectiousDiseases
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
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
TB • LTBI is diagnosed ... patient has a positive ... • The positive ... used to exclude pulmonary ... LatentTB #ActiveTB #InfectiousDiseases
Differential diagnosis of Skin + Eye infections
 • Bacterial: Staph spp, Strep spp, Pseudomonas spp, Bartonella,
Differential diagnosis ... of Skin + Eye infections ... , M. leprae • Parasitic ... #dermatology #InfectiousDiseases ... #Diagnosis #viral