55 results
Cavitary Lung Disease - Differential Diagnosis and Workup Algorithm
Acute / Subacute:
 • Acute Infections: Lung abscess,
Subacute: • Acute Infections ... Emboli, Fungal Infection ... ): • Chronic Infections ... : TB, NTB, Fungal ... Diagnosis #Algorithm #lesion
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
• 80% with lung ... splenomegaly Other infections ... including: M, avium, TB ... Infectious: ... differential #diagnosis #causes
Cavitary Lung Lesions - Differential
Infection - Malignancy - Rheumatologic - Other

- Dr. David Furfaro https://twitter.com/david_furfaro

#Cavitary #Cavity
Cavitary Lung Lesions ... Differential Infection ... Cavitary #Cavity #Lung ... #Lesions #Causes
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 ... • Lymphoma • Lung ... • 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 ... • Lymphoma • Lung ... • Progressive lung
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 ... Mnemonic #Cavitary #Lesions
Hemoptysis - Differential Diagnosis Framework
Airways: 
 • Bronchitis
 • Bronchiectasis
 • Malignancy: Primary bronchogenic CA, Endobronchial
Fistulas • Dieulafoy lesion ... Parenchyma: • Infection ... : TB, Paragonimus ... westermani, PNA, Lung ... Diagnosis #pulmonary #causes
Neurological Manifestations of Tuberculosis
Spinal Arachnoiditis & Polyradiculopathy:
 • Subacute onset of limb weakness, bladder/bowel dysfunction, muscle
ring-enhanced lesion ... Abscess: • More bacilli ... with pulmonary TB ... neurological symptoms • Caused ... #differential #TB
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
Gastrointestinal Causes of Iron Deficiency Anemia
 • Mass lesions: Carcinoma, Large polyps
 • Inflammatory: Reflux esophagitis,
Gastrointestinal Causes ... Anemia • Mass lesions ... nevus syndrome • Infectious ... enterocolitis, Long-distance ... Deficiency #Anemia #Causes