49 results
Causes of Fever of Unknown Origin (FUO) - Differential Diagnosis
 • Infection: Extrapulmonary tuberculosis, Abscess, Endocarditis,
Lemierre's syndrome ... Malignancy: - Hematologic ... . autoimmune): Lupus ... Rheumatoid arthritis, Vasculitis ... the most common vasculitis
Aortitis - Differential Diagnosis Framework
Non-Infectious Aortitis:
 • Vasculitides: Giant Cell Arteritis (GCA), Takayasu's arteritis, Cogan's Syndrome,
Non-Infectious Aortitis: • Vasculitides ... arteritis, Cogan's Syndrome ... ANCA associated vasculitis ... (RA), Systemic lupus ... Differential #Diagnosis #rheumatology
BEE Syndromes - Immune-mediated conditions affecting the brain, eye, and ear

Visual or auditory symptoms in conjunction
and less common diseases ... diagnosis and treatment ... Inflammatory causes ... • Systemic lupus ... ANCA-associated vasculitides
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
- Bone marrow disease ... - Hemolytic anemia ... Kasabach-Merritt syndrome ... Gardner-Diamond syndrome ... Differential #Diagnosis #hematology
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Extravascular Causes ... ) - HELLP syndrome ... usually IgG) (e.g. lupus ... differential #diagnosis #hematology ... #anemia
Etiologies of Peripheral Neuropathy
 • Metabolic / Nutritional: DiabetesB12 deficiency, Uremia/ESRD, Hypothyroidism
 • Medication-induced: ART, Antibiotics,
DiabetesB12 deficiency, Uremia ... Guillain-Barre, Vasculitis ... , Sjogren's, Lupus ... Paraprotein-associated (POEMS syndrome ... differential #diagnosis #causes
Clinical Features of Systemic Lupus (SLE)
General: Fever (50%), Depression, Fatigue (75%), Weight loss (50%)
Eye: Sjögrens (15%)
Skin
Clinical Features ... Butterfly rash, Vasculitis ... Demyelinating syndromes ... pain (20%) Renal disease ... ) Blood (75%): Anemia
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tract, and often causes ... inflammation Others: • Lupus ... : • Behçet Syndrome ... • Cogan Syndrome ... such as systemic lupus
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
) Suspect: Clinical ... Malignancy (e.g. hematologic ... Clinical Features ... vein thrombosis Hematologic ... lymphopenia, low PLT • Anemia
VEXAS (Vacuoles, E1 enzyme, X-linked, Autoinflammatory, Somatic) Syndrome
Clinical Syndrome:
 • Common Clinical Features: alveolitis, ear and
Clinical Syndrome ... : • Common Clinical ... thromboembolic disease ... recurrent fevers, vasculitis ... Abnormalities: macrocytic anemia