19 results
Dermatological semiology of Cutaneous Vasculitis 

Clinicopathologic correlations
 • Purpura, papules, pustules, necrosis: involvement of small vessels
Identification of causes ... disease (10%) : SLE ... Vasculitis #dermpath #dermatology ... signs #lesions #diagnosis ... #clinical #manifestations
Tinea Versicolor (Pityriasis versicolor) 
NOT a dermatophyte infection 
Caused by saprophytic, lipid-dependent yeasts 
Clinical 
 •
dermatophyte infection Caused ... lipid-dependent yeasts Clinical ... Tinea #Versicolor #Dermatology ... #SkinRash #Diagnosis ... #Management
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
to 1:1 F:M • Clinical ... NPSLE rare, Malar rash ... Rare (SSA+ for cutaneous ... 40, F:M 9:1 • Clinical ... #diagnosis #management
Systemic Lupus Erythematosus (SLE) - Diagnosis and Management Summary
 • Epidemiology: 10-180/100,000, Typically Age 20-40, F:M
) - Diagnosis and ... 40, F:M 9:1 • Clinical ... Manifestations: Malar rash ... Positive in 60-80% of cases ... #rheumatology
Cutaneous larva migrans skin Rash
25 F recent Caribbean vacation, walked barefoot on sand and now with
. diagnosis? ... self-limited Diagnosis ... is clinical & labs ... larva #migrans #skinRash ... #dermatology #clinical
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
fires, heating pads ... : infections (cutaneous ... Rash is usually ... #differential #diagnosis ... #dermatology #compared
ANTI-MDA5 DERMATOMYOSITIS

Cutaneous manifestations:
• Periorbital heliotrope (blue-purple) rash with edema
• Erythematous rash on the face, or the
DERMATOMYOSITIS Cutaneous ... (blue-purple) rash ... • Erythematous rash ... auricular papules Clinical ... #dermatology #diagnosis
Moccasin-variety Tinea Pedis 
70 M chronic scaly feet. Over the years: rash has itched only occasionally;
Over the years: rash ... Diagnosis? ... dermatophytes cause ... Variety #type #clinical ... #photo #foot #dermatology
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
organ damage Clinical ... involvement (2%) Cutaneous ... #Coagulation #diagnosis ... #causes #treatment ... #management #hematology
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
Fever is the main clinical ... Petechial or purpuric rash ... erythematosus [SLE ... Activation #Syndrome #Diagnosis ... #Management #Hematology