10 results
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 ... Posterior •TB ... , Mediastinum, Lungs ... Diagnosis #Algorithm #Causes ... #Hematology #Oncology
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
status NTM Cause ... Nodular or cavitary ... Kansasii: • Mimics TB ... with: Cavitary ... Hematologic malignancy
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
polymicrobial infection ... • Most common cause ... Clindamycin in case ... westermani • Other: TB ... #differential #causes
Cavitation - Pneumonia
In virulent pyogenic infections an abscess may form within the consolidated lung as a
virulent pyogenic infections ... the consolidated lung ... granulomatous infection ... like TB, cavities ... Radiology #CXR #CTChest
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
• Chronic lung ... lymphocytic interstitial lung ... Chest CT: • Ground-glass ... DDX - Other causes ... hypogammaglobulinemia #immunology #hematology
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 Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... factor • May cause ... 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
potential inciting causes ... Haverhill fever caused ... cancers, including lung ... endemic mycoses, TB ... differential #diagnosis #dermatology
Alcoholic Hepatitis - Management Algorithm
Assess Eligibility for Treatment:
 - Maddrey Discriminant Function ≥ (or possibly MELD
exclude other causes ... - Screen for infection ... with chest x-ray ... HIV, TB - Multiorgan ... Management #Algorithm #hepatology