28 results
TYPE I & TYPE II ERRORS 

SENSITIVITY & SPECIFICITY = SNOUT & SPIN 
Sensitive Tests that
SPECIFICITY = SNOUT ... Negative Rule OUT Disease ... Positive Rule LN Disease
CT Lung Signs in Pulmonary Diseases - One Page Summary of Pulmonary Signs
 - Air Crescent
CT Lung Signs in ... Pulmonary Diseases ... Bronchus sign - Signet ... pleura sign #ChestCT ... #Pulmonary #Diseases
Important Biostatistics and Epidemiology Equations

Sensitivity = TP / (TP + FN) = true positives / disease
true positives / disease ... true negatives / disease ... Sensitivity = SNOUT
Chronic Cough - Differential Diagnosis Algorithm
Red Flags:
 • Fever, night sweats, chills (infection)
 • Weight loss,
underlying lung disease ... lymadenopathy, clubbing, chest ... refer + order CT ... of cancer, lung disease
Orbicularis Reflex in an Alzheimer's Patient on Physical Exam

Alzheimer's is a degenerative, progressive and irreversible disease.
and irreversible disease ... course of the disease ... #Orbicularis #Snout
Signet Ring Sign on Chest CT
 • Prominently dilated airway compared to its accompanying pulm vessel.
Signet Ring Sign ... on Chest CT • ... .2016.12.033 #Signet ... #Ring #Sign #CT
Cushing's Syndrome - Hypercortisolism - Diagnosis and Clinical Features
1) Skin
 • Thin, easily bruisable skin with
) Peptic Ulcer disease ... rarely in Cushing's disease ... 2) Cushing's disease ... • In Cushing's disease ... is suspected: chest
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
Peripheral edema, Disease-specific ... vasculitis, Behcet disease ... Goodpasture's Disease ... high resolution chest ... CT • Bronchoscopy
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
• Chronic lung disease ... Granulomatous disease ... • Liver diseases ... interstitial lung disease ... Chest CT: • Ground-glass
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
Miliary Pattern - Chest ... hematogenous spread of a disease ... Miliary #Pattern #Chest ... CXR #clinical #CT