37 results
Rapidly Growing Mycobacterial Infections

 • Mycobacterium abscessus - Is the most pathogenic and the most likely
pulmonary infection ... underlying lung disease ... as disseminated disease ... Mycobacterium #diagnosis #differential ... #infectiousdiseases
Causes of Polycythemia (Erythrocytosis) - Differential Diagnosis Algorithm
Relative - Normal RBC Mass / Decreased Plasma Volume
Causes of Polycythemia ... Erythrocytosis) - Differential ... Cyanosis without Pulmonary ... Apnea • Chronic Pulmonary ... #Hematology
Clinical Classification of Pulmonary Hypertension

1. Pulmonary arterial hypertension from pulmonary vasculopathy
Idiopathic pulmonary arterial hypertension
Heritable gene mutations
Clinical Classification ... pulmonary disease ... , Gaucher disease ... Classification #Diagnosis #Differential ... #Causes
Adult-Onset Still's Disease
Clinical triad: Fever, Arthralgia/arthritis, Skin rash ± odynophagia
+ Biological inflammation: Increased neutrophils, Hyperferritinemia, decreased
Adult-Onset Still's Disease ... Clinical triad ... fraction < 20% Differential ... hepatitis • Pulmonary ... management #treatment #rheumatology
Differential Diagnosis - Noninfectious Causes of Fever

CRITICAL DIAGNOSES:
 - Acute myocardial infarction
 - Pulmonary embolism or
Differential Diagnosis ... Noninfectious Causes ... of Fever CRITICAL ... infarction - Pulmonary ... #Differential #
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
pathophysiologic causes ... With associated pulmonary ... involvement: Anti-GBM Disease ... Glomerulonephritis #Vasculitis #differential ... diagnosis #algorithm #rheumatology
ANTI-MDA5 DERMATOMYOSITIS

Cutaneous manifestations:
• Periorbital heliotrope (blue-purple) rash with edema
• Erythematous rash on the face, or the
auricular papules Clinical ... severity of the disease ... prevalence of RP-ILD Phenotype ... muscle weakness Phenotype ... Dermatomyositis #rheumatology
Hemoptysis - Differential Diagnosis Framework
Massive Hemoptysis: >150-300 mL in 24h
Airway disease: 
 • Bronchitis, Bronchiectasis, Malignancy
Hemoptysis - Differential ... in 24h Airway disease ... Kaposi's sarcoma • Rheumatologic ... #Diagnosis #pulmonary ... #causes
Bronchiectasis - Permanent dilation of an airway
WHAT CAN YOU SEE ON CT?
1) Lack of tapering of
Obstruction 6) Rheumatologic ... /Autoimmune diseae ... Bronchiectasis #pulmonary ... #diagnosis #differential ... #causes
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
ANA ≠ Autoimmune Disease ... likely it will be clinically ... , Interstitial Pulmonary ... ANA #patterns #rheumatology ... #diagnosis #differential