38 results
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 ... • Progressive lung ... Pleuritic CP • +/- hemoptysis ... Complications: Hemoptysis
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 ... • Progressive lung ... Pleuritic CP • +/- hemoptysis ... Complications: Hemoptysis
Hemoptysis - Differential Diagnosis Framework
Airways: 
 • Bronchitis
 • Bronchiectasis
 • Malignancy: Primary bronchogenic CA, Endobronchial
Hemoptysis - Differential ... Parenchyma: • Infection ... : TB, Paragonimus ... westermani, PNA, Lung ... Diagnosis #pulmonary #causes
Hemoptysis - Differential Diagnosis Framework
Massive Hemoptysis: >150-300 mL in 24h
Airway disease: 
 • Bronchitis, Bronchiectasis, Malignancy
Parenchyma: • Infection ... : Bacterial (TB, ... Malignancy: Primary lung ... Postprocedural, Lung ... Diagnosis #pulmonary #causes
Chronic Cough - Differential Diagnosis Algorithm
Red Flags:
 • Fever, night sweats, chills (infection)
 • Weight loss,
sweats, chills (infection ... Dyspnea (underlying lung ... disease or CHF) • Hemoptysis ... lymadenopathy, clubbing, chest ... Diagnosis #Algorithm #causes
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
polymicrobial infection ... • Most common cause ... pain, hemoptysis ... westermani • Other: TB ... #differential #causes
Causes of Thrombocytosis - Differential Diagnosis
Secondary Thrombocytosis (a.k.a Reactive Thrombocytosis):
 • Acute infection
 • Solid organ
Causes of Thrombocytosis ... Thrombocytosis): • Acute infection ... iron deficiency, hemolysis ... e.g. autoimmune, TB ... Differential #Diagnosis #Causes
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
• Dyspnea • Hemoptysis ... Most Common Causes ... : TB, NTM, PNA ... in the adjacent lung ... of the affected 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 ... #Differential #Lung
Causes of Localized Lymphadenopathy - Differential Diagnosis Algorithm
Cervical:
 - Anterior
     • Infection
Causes of Localized ... Anterior • Infection ... Posterior •TB ... , Mediastinum, Lungs ... Diagnosis #Algorithm #Causes