220 results
Small Vessel Vasculitides
 • Granulomatosis with polyangiitis - Granulomatous manifestations (e.g., nasal crusting, destructive sinusitis, pulmonary
Small Vessel Vasculitides ... destructive sinusitis, pulmonary ... and Sjogren's syndrome ... • IgA vasculitis ... #diagnosis
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Causes of Erythema ... Sarcoidosis or Lofgren's syndrome ... Giardiasis #Erythema ... #Differential #Diagnosis ... #Dermatology #SkinRash
Pulmonary Renal Syndromes and Mimics - Differential Diagnosis Framework
Diffuse alveolar hemorrhage + rapidly progressive glomerulonephritis
90%:
 -
Pulmonary Renal ... - Differential Diagnosis ... ANCA Associated Vasculitis ... Kumfer @AnnKumfer #Pulmonary ... #Differential #Diagnosis
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
Differential Diagnosis ... ANCA-positive vasculitis ... ANCA-negative vasculitis ... IgA-associated vasculitis ... #differential #diagnosis
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
Vasculitis Involving ... - Differential Diagnosis ... • Erythema elevatum ... Disease • Cogan syndrome ... #differential #diagnosis
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Lyme disease Erythema ... Hypersensitivity vasculitis ... Antiphospholipid-antibody syndrome ... • Vasculitis ... #differential #diagnosis
Red Leg - Cellulitis Mimickers
 - Unilateral
     • Contact Dermatitis
Acute Gout • Erythema ... Nodosum • Vasculitis ... Arthritis • Erythema ... mimickers #redleg #diagnosis
Fever and Rash - Differential Diagnosis Framework
 • Viral: Measles, Infectious Mono (EBV, CMV), Acute HIV,
- Differential Diagnosis ... Noninfectious: SJS/TEN, Erythema ... , DRESS, Sweet syndrome ... , Vasculitis SCVMC ... #Differential #Diagnosis
Reactive Skin Rash - Differential Diagnosis Algorithm
Reactive erythematous with various morphology
 • Urticaria - Firm /
- Differential Diagnosis ... lasts <24hrs • Erythema ... nodules on shins • Erythema ... #Reactive #SkinRash ... #Differential #Diagnosis
Erythema Nodosum - Causes and Differential Diagnosis 
Appearance:  erythematous painful lumps usually 1-6 cm in
Erythema Nodosum ... and Differential Diagnosis ... healing process) #Erythema ... #Differential Diagnosis ... #Dermatology #SkinRash