22 results
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
• Rheumatic fever ... Vesicopustule on erythematous ... Discoid lupus erythematosus ... #skin #rashes #differential ... #diagnosis #rheumatology
Erythematous Rashes - THE ALGORITHMIC APPROACH

Characterized by diffuse redness of the skin due to
capillary congestion, erythematous
the Nikolsky sign ... , the differential ... includes Kawasaki disease ... #Diagnosis #Dermatology ... #Differential
Systemic Lupus Erythematosus - Diagnosis
Manifestations:
 - Arthritis 69%
 - Malar rash 40%
 - Fever 36%
 -
Systemic Lupus Erythematosus ... Malar rash 40% - Fever ... (aPL) 30-45% Differential ... autoantibodies #signs ... #rheumatology
Clinical Features of Systemic Lupus (SLE)
General: Fever (50%), Depression, Fatigue (75%), Weight loss (50%)
Eye: Sjögrens (15%)
Skin
(SLE) General: Fever ... pain (20%) Renal disease ... SLE #systemic #erythematosus ... #signs #symptoms ... #diagnosis #rheumatology
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
weight loss, and fever ... permanent alopecia Differential ... Non-autoimmune rheumatologic ... to: Arthritis, Fever ... #Diagnosis #Rheumatology
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
purpuric macules • Erythematous ... • Ulcerated, erythematous ... reticularis Differential ... vasculitis (inflamed blood ... rash #diagnosis #rheumatology
ANTI-MDA5 DERMATOMYOSITIS

Cutaneous manifestations:
• Periorbital heliotrope (blue-purple) rash with edema
• Erythematous rash on the face, or the
with edema • Erythematous ... Dermatomyositis • Fever ... onset [33-74%] • Blood ... severity of the disease ... Dermatomyositis #rheumatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Vasculitis: • Fevers ... purpura: strong sign ... pulses, bruis, or blood ... Large Vessel: Blood ... #diagnosis #rheumatology
Ascites - Diagnostic Approach and Differential Diagnosis
The most common causes: cirrhosis, malignancy and heart failure. Approx
Diagnostic Approach and Differential ... dullness, puddle sign ... incisional). 3) Signs ... of underlying disease ... #Diagnosis #hepatology
Reticulocyte Production Index = (Retic %) x (Hct / 45) / Maturation Factor
The maturation factor is
long (in days) it takes ... the peripheral blood ... Chronic kidney disease ... Production #Index #hematology ... #anemia #differential