14 results
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
parenchyma by a ... polymicrobial infection ... CT Lung Abscess ... Abscess Differential ... #Abscess #pulmonary
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Left Shunt - Anatomic ... Embolism, Obstructive Lung ... , Interstitial Lung ... #Hypoxia #hypoxemia ... #differential #
Lung Nodule - Differential Diagnosis Algorithm
Nodule on > 2 Years Without a Change in Size:
 •
Lung Nodule - Differential ... Years Without a ... Granuloma • Abscess ... Breast, Testicle) Infection ... #Causes #Pulmonary
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
throughout the lungs ... hematogenous spread of a ... Opacities: • Infectious ... #diagnosis #pulmonary ... CXR #clinical #CT
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Chronic cough • Hypoxia ... CT) • Broncho-arterial ... Immunoglobulins (Ig M, A, ... mycobacteria Treatment ... #differential #
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
Illnesses: • Pulmonary ... gordonae - 99.9% a ... • Dyspnea, • Chest ... Imaging, high res CT ... #differential #
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
confirm DAH, r/o infection ... sparing of the lung ... CT ... FINDINGS: • U/A: ... diagnosis #management #treatment
Hepatopulmonary Syndrome - Diagnosis and Management Summary
A defect in arterial oxygenation due to a gas exchange
absence of intrinsic lung ... defect (Type 1) or anatomic ... upright position • Hypoxemia ... on radioactive lung ... ) on room air Treatment
Mycoses

HISTOPLASMOSIS
• Inhalation of conidia → Yeast → travel to lymph nodes → spread in body
• Bird
aches, joint pain, chest ... : • Pulmonary ( ... Sinusitis • Brain abscess ... change in the lungs ... nails, bronchi, lungs
Broncholithiasis - Differential Diagnosis Framework

 • Also known as: Lung stones, pulmoliths, pneumoliths, bronchial calculi
 •
Broncholithiasis - Differential ... Also known as: Lung ... CT • Bronchoscopy ... that migrated to a ... Broncholithiasis #Differential