12 results
Halo Sign on Chest CT
 • SPN or mass surrounded by a circumferential GGO
 • DDx:
Halo Sign on Chest ... CT • SPN or mass ... #Sign #CT #Lung ... #Pulmonary #diagnosis ... #radiology #clinical
Atoll Sign (Reverse-Halo Sign) on Chest CT
 • Central GGO surrounded by a crescentic or circumferential
Atoll Sign (Reverse-Halo ... CT • Central GGO ... #Sign #CT #Lung ... #Pulmonary #diagnosis ... #radiology #clinical
Acute Respiratory Distress Syndrome – ARDS: Clinical Cheat Sheet

An acute diffuse, inflammatory lung injury, leading to
Syndrome – ARDS: Clinical ... leading to increased pulmonary ... be detected on CT ... or CXR ● PaO2/ ... Summary #CheatSheet #Diagnosis
Based on the images alone, it is usually not possible to determine the cause of the
determine the cause ... level and high D-dimer ... nodular interstitial lung ... #Clinical #Diagnosis ... #Radiology #CXR
Anterior ischemic optic neuropathy (AION) - Recognition of giant cell arteritis (GCA)

1) Is visual loss caused
Clinical manifestations ... Temporal Doppler US : halo ... sign PET/CT: ... GiantCellArteritis #GCA #Rheumatology ... Ophthalmology #Diagnosis
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... • Most common cause ... Lung Abscess - Clinical ... seen • Chest CT ... #Abscess #pulmonary
Pott's Disease in Tuberculosis - Diagnosis and Management Summary
Epidemiology:
 - Typically from TB endemic areas
 -
extrapulmonary cases ... Clinical Signs ... years - May have signs ... tissue damage - CXR ... involvement - CT
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Chronic inflammation causes ... Most Common Causes ... Nasal polyps and signs ... in the adjacent lung ... high-resolution chest CT
Hampton hump is a radiologic sign which consists of a shallow wedge-shaped opacity in the periphery
is a radiologic sign ... periphery of the lung ... may aid in the diagnosis ... In this case, pulmonary ... confirmed with chest CT
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
- Differential Diagnosis ... • CT: Halo sign ... factor • May cause ... Infections #HIV #AIDS #pulmonary ... #differential #diagnosis