8 results
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
Autoimmunity • Chronic ... lung disease ... hemolytic anemia ... syndrome, HIV) ... #diagnosis #management
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... • CT: Halo sign ... #Infections #HIV ... #AIDS #pulmonary ... #infectiousdiseases
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
fibromyalgia) • Infections ... PNS and CNS • Headache ... Kidney disease common ... with Lupus: • Chronic ... #Diagnosis #Rheumatology
Giant cell arteritis (GCA)

Giant cell arteritis (GCA) definition: Most common systemic inflammatory vasculitis in older adults
systemic sx + signs ... vasculitis vs infection ... GCA #Temporal #Signs ... #Symptoms #Diagnosis ... #Management
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Eosinophilia, asthma, chronic ... to exclude are infections ... Presentation - Systemic Symptoms ... purpura: strong sign ... #rheumatology #
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
purpura: Strong sign ... Nodosa: • PAN most commonly ... ischemia • Skin: Erythematous ... Eosinophilia, asthma, chronic ... #Rheumatology
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
Tenderness → Consider infectious ... RP-ILD), dermato-rheumatologic ... papules and Gottron sign ... ) • Shawl sign ... muscular atrophy • Chronic
Mycoses

HISTOPLASMOSIS
• Inhalation of conidia → Yeast → travel to lymph nodes → spread in body
• Bird
droppings • Most common ... cough, chills, headache ... • Rheumatologic ... yeast • At risk: AIDS ... #Management #Infections