10 results
Dermatological semiology of Cutaneous Vasculitis 

Clinicopathologic correlations
 • Purpura, papules, pustules, necrosis: involvement of small vessels
Identification of causes ... disease (10%) : SLE ... #dermpath #dermatology ... #semiology #signs ... diagnosis #clinical #manifestations
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Causes of Thrombocytopenia ... Autoimmune • ITP • SLE ... Non-lmmune: • HELLP Syndrome ... HUS • DIC • Vasculitis ... #Causes #Hematology
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
M > F Clinical Manifestations ... Oral aphthae : SLE ... • Arthritis: SLE ... diagnosis #management #signs ... #symptoms #rheumatology
Lupus (SLE): Mucocutaneous Manifestations

 • Langerhan cells and keratinocytes release cytokines -> localized inflammatory response ->
Manifestations ... hair follicles -> causes ... > Mouth, Nasal Ulcers ... Livedo Reticularis, Vasculitis ... pathophysiology #diagnosis #signs
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
• They can cause ... Purpura - Skin ulcers ... Cryoglobulins Cause ... diseases: - 10% SLE ... erythematosus (SLE
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tract, and often causes ... livedo reticularis, ulcers ... genital aphthous ulcers ... purpura: strong sign ... , and SLE) • Urinalysis
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
diseases, such as SLE ... purpura: Strong sign ... tract, and often causes ... • Behcet syndrome ... • Cogan syndrome
Cryofibrinogenemia Summary

Cryofibrinogenemia Epidemiology:
 • 40-70 years with a modest female predominance

Cryofibrinogenemia:
 • The precipitation of a
malignancies, vasculitis ... sensitivity • Painful ulcers ... cryoglobulins • Negative causes ... Antiphospholipid syndrome ... #hematology
Acute Retroviral Syndrome
Acute Retroviral Syndrome is the symptomatic presentation of acute human immunodeficiency virus infection

 •
24%) • Mouth ulcers ... , vomiting, diarrhea ... nervous system manifestations ... 14%), in which case ... • New onset SLE
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
status NTM Cause ... : • Syndrome of ... Hematologic malignancy ... liver enzymes, diarrhea ... Disease: Clinical Manifestations