174 results
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Human parvovirus B19 ... infection Malar ... infection • Lyme ... disease • Rosacea ... #differential #diagnosis
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
Causes of Thrombocytosis ... - Differential Diagnosis ... Myelofibrosis Infectious ... disorders • Celiac disease ... effect following treatment
Demyelinating Diseases - Differential Diagnosis
 • Inflammatory: MS, ADEM, NMO, Paraneoplastic, Sjogren's, Polyarteritis nodosa, SLE
 •
Demyelinating Diseases ... - Differential Diagnosis ... nodosa, SLE • Infectious ... Other: Vitamin B12 ... #causes #neurology
Non-HCV infectious mixed cryoglobulinemia vasculitis - Diagnosis, causes and management - French Vasculitis Study Group

< 5%
, causes and management ... cryoglobulinemia vasculitis Clinical ... manifestations - Skin ... neuropathy Treatment ... with refractory disease
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
decades of life Causes ... and clinical associations ... Infections 2. ... #rheumatology # ... comparison #table
Causes of Anemia by Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Low Mean Corpuscular Volume (<80
Causes of Anemia ... - Differential Diagnosis ... Inflammation, Chronic Infection ... (>100 fL) • B12 ... #Hematology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
- Differential Diagnosis ... purple, hemorrhagic skin ... SLE) - Viral infections ... APLS • Acute Infectious ... #hematology #rheumatology
Adult-Onset Still's Disease
Clinical triad: Fever, Arthralgia/arthritis, Skin rash ± odynophagia
+ Biological inflammation: Increased neutrophils, Hyperferritinemia, decreased
Clinical triad ... Arthralgia/arthritis, Skin ... Differential Diaqnoses ... : • Infectious ... #treatment #rheumatology
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Chorioretinitis • Diagnosis ... , may also see skin ... #differential #diagnosis ... #causes #radiology ... #neurology
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
GPA causes disease ... Rarely dominate the clinical ... Differential Diagnosis ... • Fungal infections ... #rash #diagnosis