17 results
Small Vessel Vasculitides
 • Granulomatosis with polyangiitis - Granulomatous manifestations (e.g., nasal crusting, destructive sinusitis, pulmonary
Interstitial lung disease ... viruses. systemic lupus ... and Sjogren's syndrome ... #vasculitis #differential ... #diagnosis
Causes of Eosinophilia - Differential Diagnosis
Bugs:
 - Fungus (aspergillosis)
 - Viral (HIV)
 - Ectoparasites (scabies, myiasis)
- Differential ... Rhinitis - Allergic Dermatitis ... Asthma Tugs (vasculitis ... Hypereosinophilic Syndrome ... #hematology
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
Diagnosis for Pulmonary ... (Eosinophilic granulomatosis ... Complex: Systemic lupus ... #differential # ... diagnosis #nephrology
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Amyloidosis • Eosinophilic ... lesions • Discoid lupus ... Sarcoidosis #dermatology ... #skin #rashes #differential ... #diagnosis #rheumatology
Vancomycin induced Leukocytoclastic Vasculitis (LCV) of the Hand
70 M vertebral osteomyelitis on vancomycin and cefepime for
Diagnosis? ... Differential for ... reaction with eosinophilia ... #LCV #Hand #skinrash ... #photo
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential ... • EGPA: - Eosinophilia ... inflammation Others: • Lupus ... such as systemic lupus ... differential #diagnosis
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
Polymyositis-dermatomyositis, Lupus ... Sarcoidosis • Vasculitis ... Churg Strauss syndrome ... #ILD #diagnosis ... #differential #
Cutaneous manifestations associated with myelodysplastic syndrome
 • Myeloid hemopathy with the most frequent skin lesions (20%)
appearing during the disease ... Neutrophilic dermatosis ... leukocytoclastic vasculitis ... #differential # ... diagnosis #dermatology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... Diagnosis Framework ... Kasabach-Merritt syndrome ... Pigmented Purpuric Dermatosis ... #Diagnosis #hematology
Paraproteinemias

Entities That Can Feature A Monoclonal Protein/M Component:
• MM
• WM
• MGUS
• MGCS
• MGRS
• Splenic Marginal Zone
• Heavy Chain disease ... to cold IgG • Lupus ... Episodic angioedema+eosinophilia ... #Monoclonal #Differential ... #Diagnosis #Oncology