110 results
Pulmonary Renal Syndromes and Mimics - Differential Diagnosis Framework
Diffuse alveolar hemorrhage + rapidly progressive glomerulonephritis
90%:
 -
- Differential Diagnosis ... - Anti-GBM Disease ... , Behcet's Disease ... , ARDS with multiorgan ... #Differential #Diagnosis
Classification of Vasculitis 
Vasculitis of large vessels 
 - Arteritis temporalis (giant-cell arteritis) 
 - Takayasu
Churg-Strauss syndrome ... malignomas, and infectious ... - Sjögren syndrome ... #Vessels #Diagnosis ... #Rheumatology #Diagnosis
Dermatological semiology of Cutaneous Vasculitis 

Clinicopathologic correlations
 • Purpura, papules, pustules, necrosis: involvement of small vessels
Connective tissue disease ... (3%) • Infections ... #dermpath #dermatology ... #semiology #signs ... #lesions #diagnosis
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
- Differential Diagnosis ... , infections, drug ... : • Behcet Disease ... • Cogan syndrome ... #skin #dermatology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
- Differential Diagnosis ... SLE) - Viral infections ... Kasabach-Merritt syndrome ... APLS • Acute Infectious ... #nonpalpable #dermatology
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
Differential Diagnosis ... • Goodpasture syndrome ... cell arteritis Infections ... • Fungal infections ... #rash #diagnosis
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
Differential Diagnosis ... ANCA-positive vasculitis ... allopurinol), Infection ... DAH, rule out infection ... #differential #diagnosis
Fever and Rash - Differential Diagnosis Framework
 • Viral: Measles, Infectious Mono (EBV, CMV), Acute HIV,
- Differential Diagnosis ... Viral: Measles, Infectious ... gonorrhea, Rickettsial diseases ... , Vasculitis SCVMC ... #dermatology
Causes of Fever of Unknown Origin (FUO) - Differential Diagnosis
 • Infection: Extrapulmonary tuberculosis, Abscess, Endocarditis,
- Differential Diagnosis ... • Infection: ... Lemierre's syndrome ... the most common vasculitis ... #Differential #Diagnosis
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
parvovirus B19 infection ... parvovirus B19 infection ... Antiphospholipid-antibody syndrome ... Sarcoidosis #dermatology ... #differential #diagnosis