17 results
Non-Resolving Pneumonias: Etiologies
Unusual Infections:
 - Immunocompromised patients (e.g.: Mycobacterium, Aspergillosis, Nocardia)
 - Endemic Fungi (e.g.: Histoplasmosis,
yersinia/rats, Q fever ... ) - Returning travelers ... disorders: - Vasculitis ... PNA (acute or chronic ... Other Rheum (RA, SLE
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Dermatomyositis Erythema chronicum ... • Rheumatic fever ... Hypersensitivity vasculitis ... Sarcoidosis #dermatology ... #differential #diagnosis
Dermatological semiology of Cutaneous Vasculitis 

Clinicopathologic correlations
 • Purpura, papules, pustules, necrosis: involvement of small vessels
semiology of Cutaneous Vasculitis ... disease (10%) : SLE ... #dermpath #dermatology ... #semiology #signs ... #lesions #diagnosis
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
- Differential Diagnosis ... Associated - SLE ... mountain spotted fever ... #hematology #rheumatology ... #nonpalpable #dermatology
Clinical Features of Systemic Lupus (SLE)
General: Fever (50%), Depression, Fatigue (75%), Weight loss (50%)
Eye: Sjögrens (15%)
Skin
) General: Fever ... Butterfly rash, Vasculitis ... erythematosus #signs ... #symptoms #diagnosis ... #rheumatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Eosinophilia, asthma, chronic ... : • Fevers • ... purpura: strong sign ... , and SLE) • Urinalysis ... #rheumatology #
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
- Differential Diagnosis ... genotypes): SS, SC, SE ... cardiac valve, vasculitis ... bartonella (oroya fever ... Algorithm #workup #hematology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Diagnosis Framework ... diseases, such as SLE ... purpura: Strong sign ... Eosinophilia, asthma, chronic ... #Rheumatology
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
weight loss, and fever ... Differential Diagnosis ... Malignancy (e.g. hematologic ... to: Arthritis, Fever ... with Lupus: • Chronic
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
Arthritis Differential Diagnosis ... noninflammatory Signs ... • Rheumatic fever ... arthritis • SLE ... #MSK #rheumatology