39 results
Feeding Vessel Sign on Chest CT
 • Distinct pulmonary vessel leading into a lung nodule or
Sign on Chest CT ... • DDx: Septic ... #Vessel #Sign #CT ... #diagnosis #radiology ... #clinical
Halo Sign on Chest CT
 • SPN or mass surrounded by a circumferential GGO
 • DDx:
Sign on Chest CT ... circumferential GGO • DDx ... #Halo #Sign #CT ... #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
Bell's Palsy - Diagnosis and Management Summary - GrepMed Handbook

Acute Idiopathic Unilateral Facial Nerve (CN7) Palsy
Presentation:
Etiology: Idiopathic, HSV ... : HZV (Ramsay-Hunt ... ), HIV, Lyme, GBS ... endemic area) ± HIV ... CN7, parotid), CT
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
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
Galaxy Sign on Chest CT
 • Coalescent granuloma with a central dense mass and tiny peripheral
satellite nodules • DDx ... massive fibrosis, active ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
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
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
to 8 years Clinical ... • Chronic lung ... Chest CT: • Ground-glass ... DDX - Other causes ... Epstein-Barr syndrome, HIV
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 ... #diagnosis #radiology ... #clinical