37 results
Cavitary Lung Disease - Differential Diagnosis and Workup Algorithm
Acute / Subacute:
 • Acute Infections: Lung abscess,
- Differential ... Subacute: • Acute Infections ... Infection, Nocardia ... ): • Chronic Infections ... Algorithm #lesion #pulmonary
Fever in Returning Travelers from Tropical Regions - Frequent Differential Diagnoses
Medical History:
 • Skin exposure to
B, hepatitis C infection ... hepatitis B and C infection ... , HIV infection, ... , acute HIV infection ... HIV infection
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
Pulmonary Infections ... spp, Atypical infection ... Microsporidum Non-infectious ... bronchoscopy Infectious ... #Infections #HIVAIDS
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
Lung Nodules - Differential Diagnosis by Distribution
 • Centrilobular: Hypersensitivity Pneumonitis, RB-ILD, Pneumoconiosis, Infectious Bronchiolitis, Vasculitis,
Lung Nodules - Differential ... Pneumoconiosis, Infectious ... Random: Metastasis, Infectious ... (viral, TB, fungal ... #Distribution #pulmonary
Causes of Antibiotic Failure - Differential Diagnosis Framework
Diagnosis:
 • Non-Infectious: Malignant, Autoimmune, Drug-related (NMS, serotonin syndrome,
Diagnosis: • Non-Infectious ... bacteria: Viral, Fungal ... take 48 hrs for infections ... (daptomycin in lungs ... SJS, DIHS, drug fever
Pulmonary Renal Syndromes and Mimics - Differential Diagnosis Framework
Diffuse alveolar hemorrhage + rapidly progressive glomerulonephritis
90%:
 -
Myositis MIMICS: - Infections ... : Hantavirus infection ... other hemorrhagic fevers ... , Leptospirosis, ... Disseminated S. aureus infection
Hemoptysis Differential Diagnosis Framework
Cardiovascular: Pulmonary embolism, Heart failure, Vasculitis, Valvular disease, Arteriovenous malformation
Pulmonary - Airway: Bronchitis,
Hemoptysis Differential ... Parenchyma: Pneumonia, Lung ... Tuberculosis, Fungal ... infection, Paragonimiasis ... #Hemoptysis #Differential
Non-Resolving Pneumonias: Etiologies
Unusual Infections:
 - Immunocompromised patients (e.g.: Mycobacterium, Aspergillosis, Nocardia)
 - Endemic Fungi (e.g.: Histoplasmosis,
Etiologies Unusual Infections ... Nocardia) - Endemic Fungi ... psittaci/avian, leptospirosis ... yersinia/rats, Q fever ... #differential
CAVITY – a useful mnemonic for the causes of a cavitating lung mass.

C = cancer
of a cavitating lung ... embolus I = infection ... (TB, fungal, staph ... Cavitary #Lesions #Differential ... #Lung #Pulmonary