10 results
Bronchiectasis - Permanent dilation of an airway
WHAT CAN YOU SEE ON CT?
1) Lack of tapering of
Bronchiectasis - ... CAN YOU SEE ON CT ... involving both lungs ... Obstruction 6) Rheumatologic ... #pulmonary #diagnosis
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Fevers and/or chills ... Nasal polyps and signs ... in the adjacent lung ... high-resolution chest CT ... #diagnosis
Signet Ring Sign on Chest CT
 • Prominently dilated airway compared to its accompanying pulm vessel.
Signet Ring Sign ... on Chest CT • ... • DDx: Bronchiectasis ... #CT #Lung #Pulmonary ... #diagnosis #radiology
Tram Track Sign on Chest CT
 • Parallel, non-tapering airways, extending to the lung periphery.
 •
Tram Track Sign ... on Chest CT • Parallel ... Cylindrical or traction bronchiectasis ... #CT #Lung #Pulmonary ... #diagnosis #radiology
Polo Mint Sign on Chest CT
 • Partial filling defect in a blood vessel surrounded by
Polo Mint Sign on ... filling defect ... #Polo #Mint #Sign ... #CT #Lung #Pulmonary ... #diagnosis #radiology
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
Affects 1:25,000 ... • Chronic lung ... disease • Bronchiectasis ... lymphocytic interstitial lung ... Chest CT: • Ground-glass
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
- Differential Diagnosis ... • CT: Halo sign ... you have HIV), Chills ... Infections #HIV #AIDS #pulmonary ... #differential #diagnosis
Extra-articular and Other Conditions Associated with Joint Pain

Eyes
  • Iritis or uveitis - Spondyloarthropathies, Sarcoidosis,
• Interstitial lung ... RA - SLE • Bronchiectasis ... syndrome - SLE Neurologic ... #differential #diagnosis ... #rheumatology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
- Differential Diagnosis ... purpura: Strong sign ... the skin, neurologic ... deficits, TIA and ... #Rheumatology
Mycoses

HISTOPLASMOSIS
• Inhalation of conidia → Yeast → travel to lymph nodes → spread in body
• Bird
Fever, cough, chills ... symptoms • Rheumatologic ... change in the lungs ... : • Serology for ... nails, bronchi, lungs