41 results
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Associated with Joint Pain ... Rash • Human ... • Rheumatic fever ... gangrenosum • IBD ... differential #diagnosis
Algorithmic Approach to Acute Interstitial Nephritis
When to suspect AIN? (not sensitive)
 • AKI, AKD, rapidly progressive
Algorithmic Approach to Acute ... triad (<10%): fever ... , rash, eosinophilia ... microscopic hematuria, mild ... Algorithm #nephrology #diagnosis
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
decades of life Causes ... symptoms - Headache, fever ... , abdominal pain ... #rheumatology #comparison ... #table
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
centrifugum • A chronic skin ... observed in acute ... PrathitKulkarni #Erythemas #comparison ... #table #differential ... #diagnosis #dermatology
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Diagnosis Framework ... • Bursitis • IBD ... Causes of Leg Pain ... Immobilization) • Acute ... /swelling - Fever
Chronic Abdominal Pain Causes - Differential Diagnosis Framework

Many patients with chronic abdominal pain have had prior
Diagnosis Framework ... potentially be an acute ... Red Flags: • Fever ... • Skin changes ... aneurysms • Acute
Approach to Eosinophilic Lung Diseases
 • Acute Eosinophilic Pneumonia (< 1 wk) - ~30yo, M; Recent
Eosinophilic Lung Diseases ... • Acute Eosinophilic ... loss; CV, CNS, skin ... #differential #diagnosis ... #comparison #table
Acute Purpura Fulminans Skin Rash on Physical Exam 
60 year old male ITP s/p splenectomy 
1d
Acute Purpura Fulminans ... Skin Rash on Physical ... Exam 60 year old ... BIDMC Infectious Diseases ... #photo
Sweet Syndrome

Acute febrile neutrophilic dermatosis (Sweets Syndrome) is a skin condition characterized by fever and inflamed
Sweet Syndrome Acute ... with systemic disease ... sudden onset of a rash ... - Rash: multiple ... Causes: - Idiopathic
Secondary Syphilis Rash
Secondary syphilis is the most contagious of all the stages of this disease, and
Skin rash and malaise ... ) ▪ Malaise, fever ... resembling rashes caused ... #Diagnosis #Clinical ... #Photo #Dermatology