30 results
Feeding Vessel Sign on Chest CT
 • Distinct pulmonary vessel leading into a lung nodule or
Sign on Chest CT ... leading into a lung ... • DDx: Septic ... #Vessel #Sign #CT ... #Lung #Pulmonary
Halo Sign on Chest CT
 • SPN or mass surrounded by a circumferential GGO
 • DDx:
Sign on Chest CT ... circumferential GGO • DDx ... sarcoidosis, mets to the lung ... #Halo #Sign #CT ... #Lung #Pulmonary
Chronic Cough - Differential Diagnosis Algorithm
Red Flags:
 • Fever, night sweats, chills (infection)
 • Weight loss,
Differential Diagnosis Algorithm ... Dyspnea (underlying lung ... refer + order CT ... History of cancer, lung ... Differential #Diagnosis #Algorithm
AATS lung cancer screening guidelines for solid nodules on low-dose computed tomography (LDCT). PET/CT, Positron emission
AATS lung cancer ... PET/CT, Positron ... PulmonaryNodules #Algorithm
Diagnostic approach to acute exacerbation in interstitial lung disease.  Abbreviation: ILD, interstitial lung disease; GGO,
in interstitial lung ... , interstitial lung ... glass opacity; CT ... #Algorithm #Acute ... #Interstitial #Lung
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
status • Chronic lung ... infections Lungs ... to NTM: Chronic lung ... Imaging, high res CT ... differential #diagnosis #infectiousdiseases
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... • CT: Halo sign ... cough, myalgia • Lung ... Microsporidium #Lung ... differential #diagnosis #infectiousdiseases
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
• Chronic lung ... lymphocytic interstitial lung ... Chest CT: • Ground-glass ... DDX - Other causes
Bronchus Sign on Chest CT
 • Airway leading directly to a peripheral lung nodule or mass
Sign on Chest CT ... to a peripheral lung ... nodule or mass • DDx ... Bronchus #Sign #CT ... #Lung #Pulmonary
Water Lily Sign (Camalote Sign) on Chest CT
 • Hydatid cyst in the lung with a
Sign) on Chest CT ... Hydatid cyst in the lung ... free-floating endocyst • DDx ... Sign #Camalote #CT ... #Lung #Pulmonary