45 results
Feeding Vessel Sign on Chest CT
 • Distinct pulmonary vessel leading into a lung nodule or
Vessel Sign on Chest ... leading into a lung ... • DDx: Septic ... Pulmonary #diagnosis #radiology ... #clinical
Halo Sign on Chest CT
 • SPN or mass surrounded by a circumferential GGO
 • DDx:
circumferential GGO • DDx ... sarcoidosis, mets to the lung ... Halo #Sign #CT #Lung ... Pulmonary #diagnosis #radiology ... #clinical
Cotton Wool Spots

Caused by microinfarcts. Exploded ganglion cell axons extrude their axoplasm into retina. Long DDx:
Long DDx: hypertension ... , diabetes, HIV, ... ophthalmology #Clinical
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
TB: • HIV • Recent ... disease • DM DDX ... are pulmonary • HIV ... TST or IGRA HIV ... : • HIV-infected
Pulmonary Hypertension Groups - WHO Classification
Group I - Vascular remodeling of pulmonary arteries
 • Idiopathic, HIV,
• Idiopathic, HIV ... III - Chronic lung ... dyspnea, fatigue, or chest ... dyspnea, fatigue, chest ... activity at rest
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
TB: • HIV • Recent ... disease • DM DDX ... are pulmonary • HIV ... TST or IGRA HIV ... : • HIV-infected
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
Syndrome: • Clinical ... • Infections: HCV ... infection, HBV ... infection, HIV infection ... DDX: • ANCA (Antineutrophil
Galaxy Sign on Chest CT
 • Coalescent granuloma with a central dense mass and tiny peripheral
satellite nodules • DDx ... massive fibrosis, active ... Galaxy #Sign #CT #Lung ... Pulmonary #diagnosis #radiology ... #clinical
Bronchus Sign on Chest CT
 • Airway leading directly to a peripheral lung nodule or mass
to a peripheral lung ... nodule or mass • DDx ... Bronchus #Sign #CT #Lung ... Pulmonary #diagnosis #radiology ... #clinical
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
to 8 years Clinical ... • Chronic lung ... lymphocytic interstitial lung ... DDX - Other causes ... Epstein-Barr syndrome, HIV