54 results
Cavitary Lung Disease - Differential Diagnosis and Workup Algorithm
Acute / Subacute:
 • Acute Infections: Lung abscess,
Cavitary Lung Disease ... Subacute: • Acute Infections ... Emboli, Fungal Infection ... ): • Chronic Infections ... : TB, NTB, Fungal
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
Droplets that contain bacilli ... affecting the lungs ... • Lymphoma • Lung ... • Progressive lung ... • Upper lobe lung
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
Droplets that contain bacilli ... affecting the lungs ... • Lymphoma • Lung ... • Progressive lung ... • Upper lobe lung
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 ... BrighamChiefs #Lung
Nodular pattern(2)
1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy.
2. TB: Tree-in-bud appearance in a patient
TB: Tree-in-bud ... patient with active TB ... bronchiolitis in infection ... Radiology #HRCT #CTChest
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
Pulmonary Infections ... spp, Atypical infection ... failure, COPD, Lung ... /- High res CT chest ... Fungal, AFB), TB
CAVITY – a useful mnemonic for the causes of a cavitating lung mass.

C = cancer
of a cavitating lung ... pulmonary embolus I = infection ... pulmonary abscess (TB ... #Differential #Lung
COVID-19 Patient Chest CT - Ground Glass Opacities 

COVID19 Infection - CT Chest, POCUS Echocardiogram and
COVID-19 Patient Chest ... Opacities COVID19 Infection ... - CT Chest, POCUS ... Echocardiogram and Lung ... COVID19 #SARSCoV2 #CTChest
Causes of Localized Lymphadenopathy - Differential Diagnosis Algorithm
Cervical:
 - Anterior
     • Infection
Anterior • Infection ... Posterior •TB ... , Mediastinum, Lungs ... Axillary: • Infection ... (In absence of infection
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
lesions • 80% with lung ... splenomegaly Other infections ... including: M, avium, TB ... multiple lesions Infectious