13 results
Cavitary Lung Disease - Differential Diagnosis and Workup Algorithm
Acute / Subacute:
 • Acute Infections: Lung abscess,
- Differential ... abscess, Necrotizing ... Chronic Infections: TB ... #Algorithm #lesion ... #pulmonary #differential
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
fibrotic lesions ... abscess Primary ... : Latent TB: • ... staining, NAA (PCR ... #Diagnosis #Management
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
fibrotic lesions ... abscess Primary ... : Latent TB: • ... staining, NAA (PCR ... #Diagnosis #Management
CAVITY – a useful mnemonic for the causes of a cavitating lung mass.

C = cancer
abscess (TB, fungal ... bronchogenic cyst #Diagnosis ... Mnemonic #Cavitary #Lesions ... #Differential # ... Lung #Pulmonary
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
toxo IgG • CNS PCR ... • 80% with lung ... including: M, avium, TB ... Syphilis • Pyogenic Abscess ... #Brain #differential
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... Abscess Diagnosis ... stable residual lesion ... Abscess Differential ... #Abscess #pulmonary
Hemoptysis - Differential Diagnosis Framework
Airways: 
 • Bronchitis
 • Bronchiectasis
 • Malignancy: Primary bronchogenic CA, Endobronchial
Fistulas • Dieulafoy lesion ... • Infection: TB ... westermani, PNA, Lung ... abscess, Aspergillosis ... #Diagnosis #pulmonary
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
in HIV / AIDS - Differential ... reactivation of latent ... Antimicrobial treatment ... tuberculomas, or abscesses ... CNS #Infections #differential
Immune Reconstitution Inflammatory Syndrome - Overview of IRIS

What Is IRIS?
	• A state of hyperinflammatory response that
, pulmonary infiltrates ... osteomyelitis, cutaneous abscesses ... leukoencephalopathy (PML ... Leishmaniasis Differential ... Inflammatory #Syndrome #Differential
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
Nodular or cavitary lesions ... Kansasii: • Mimics TB ... Diagnosis Of NTM ... Exclusion of other diagnosis ... NTM #Infections #differential