15 results
CAVITY – a useful mnemonic for the causes of a cavitating lung mass.

C = cancer
mnemonic for the causes ... embolus I = infection ... (TB, fungal, staph ... Cavitary #Lesions #Differential ... #Lung #Pulmonary
Hemoptysis - Differential Diagnosis Framework
Airways: 
 • Bronchitis
 • Bronchiectasis
 • Malignancy: Primary bronchogenic CA, Endobronchial
Hemoptysis - Differential ... Parenchyma: • Infection ... : TB, Paragonimus ... westermani, PNA, Lung ... #causes
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
Pulmonary Infections ... failure, COPD, Lung ... /- High res CT chest ... Fungal, AFB), TB ... diagnosis #evaluation #differential
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Most Common Causes ... : TB, NTM, PNA ... in the adjacent lung ... of the affected lung ... #differential #
Bronchiectasis - Permanent dilation of an airway
WHAT CAN YOU SEE ON CT?
1) Lack of tapering of
Immunodeficiency 3) Infection ... (Bacterial, TB, ... Bronchiectasis #pulmonary ... #diagnosis #differential ... #causes
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
polymicrobial infection ... westermani • Other: TB ... Abscess Differential ... #Abscess #pulmonary ... #differential #
Hemoptysis - Differential Diagnosis Framework
Massive Hemoptysis: >150-300 mL in 24h
Airway disease: 
 • Bronchitis, Bronchiectasis, Malignancy
Hemoptysis - Differential ... Parenchyma: • Infection ... : Bacterial (TB, ... #Diagnosis #pulmonary ... #causes
Neurological Manifestations of Tuberculosis
Spinal Arachnoiditis & Polyradiculopathy:
 • Subacute onset of limb weakness, bladder/bowel dysfunction, muscle
Abscess: • More bacilli ... TB • Many possible ... neurological symptoms • Caused ... Tuberculosis #diagnosis #differential ... #TB #neurology
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
status NTM Cause ... Illnesses: • Pulmonary ... Kansasii: • Mimics TB ... • Dyspnea, • Chest ... #differential #
Soil Related Infections - Differential Diagnosis Framework

Mechanism Of Infection:
 • Wound
 • GI: Ingestion, MUD, Contaminated
- Differential ... pneumophila • Bacillus ... maltophilia • Bacillus ... endemic fungi cause ... #differential #