10 results
Air Crescent Sign on Chest CT
 • Crescentic or circumferential rim of radiolucent airspace within a
Air Crescent Sign ... on Chest CT • ... a parenchymal consolidation ... #Lung #Pulmonary ... #diagnosis #radiology
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
can suggest the diagnosis ... abutting the pleura, air-bronchograms ... which are probably consolidations ... #Clinical #Radiology ... #CXR #CTChest #
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... Blood cultures • CXR ... lat decubitus - air ... seen • Chest CT ... #Abscess #pulmonary
Hampton hump is a radiologic sign which consists of a shallow wedge-shaped opacity in the periphery
periphery of the lung ... hump along may aid ... in the diagnosis ... confirmed with chest CT ... #photo #CXR #EmergencyMedicine
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
Other tests: • CT ... ground glass or consolidative ... sparing of the lung ... seen on chest CT ... #management #treatment
Differential diagnosis of the reversed halo sign (RHS). AIA, angioinvasive aspergillosis; AIS, adenocarcinoma in situ; COP,
lesions, lobular consolidation ... patients with acquired ... #Diagnosis #Pulmonary ... #Radiology #RHS ... #Differential #Algorithm
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
thickening, presence of air-fluid ... centrilobular nodules, or consolidation ... in the adjacent lung ... high-resolution chest CT ... mycobacteria Treatment
Community Acquired Pneumonia (CAP) - Diagnosis and Management

Pneumonia Signs/Symptoms:
 • Confusion/disorientation (LR + 1.9)
 • Cough
Community Acquired ... Pneumonia (CAP) - Diagnosis ... radiograph or CT ... Blood cultures - Urine ... #Pulmonary #Community
Stage III - Alveolar edema
This stage is characterized by continued fluid leakage into the interstitium, which
with perihilar consolidations ... and air bronchograms ... After treatment ... #Clinical #Radiology ... #CXR #CHF #Alveolar
Authors: Mark M. Ramzy, DO, EMT-P (@MarkRamzyDO, EM Resident Physician, Drexel University, Department of Emergency Medicine)
SpO2 88% on room air ... a chest x-ray (CXR ... not seen on a CXR ... #Radiology #CTChest ... #Lung #Pulmonary