10 results
Cavitary Lung Disease - Differential Diagnosis and Workup Algorithm
Acute / Subacute:
 • Acute Infections: Lung abscess,
Cavitary Lung Disease ... Emboli, Fungal Infection ... : TB, NTB, Fungal ... Autoimmunity: RA, GPA #Cavitary ... Diagnosis #Algorithm #lesion
CAVITY – a useful mnemonic for the causes of a cavitating lung mass.

C = cancer
mnemonic for the causes ... of a cavitating lung ... pulmonary embolus I = infection ... pulmonary abscess (TB ... #Lesions #Differential
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
Cause Many Illnesses ... : Chronic lung infections ... lesions - Centrilobular ... Kansasii: • Mimics TB ... with: Cavitary
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 ... Pulmonary fibrotic lesions ... (NTM) • Fungal ... • Progressive 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 ... Pulmonary fibrotic lesions ... (NTM) • Fungal ... • Progressive lung
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Chronic inflammation causes ... Most Common Causes ... : TB, NTM, PNA ... in the adjacent lung ... of the affected lung
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
polymicrobial infection ... • Most common cause ... stable residual lesion ... westermani • Other: TB ... #differential #causes
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... Polymorphic skin lesions ... fever, cough and cavitary ... infiltrates, mimicking TB ... #Infections #HIV
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
Haverhill fever caused ... cancers, including lung ... classic targetoid lesions ... endemic mycoses, TB ... PrathitKulkarni #Erythemas #comparison
Immune Reconstitution Inflammatory Syndrome - Overview of IRIS

What Is IRIS?
	• A state of hyperinflammatory response that
(<100), except TB ... TB - Lymphadenitis ... fevers • MAC/NTM ... unintentional weight loss, nausea ... • Leprosy • Bacillus