65 results
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
decades of life Causes ... and clinical associations ... and duration of symptoms ... angioedema Other symptoms ... #comparison #table
Hodgkin's Lymphoma vs Non-Hodgkin's Lymphoma - Comparison

Hodgkin's Lymphoma:
 • Epidemiology: young adults 20-30, older 50-70
 •
Non-Hodgkin's Lymphoma - Comparison ... • Clinical features ... involvement Differential ... #NonHodgkins #comparison ... #hematology
Eosinophil Disorders Testing Algorithm
INDICATIONS FOR TESTING:
 • Peripheral blood eosinophilia/hypereosinophilia uncovered incidentally during medical evaluation or
for secondary causes ... glucocorticoid treatment ... (eg, skin or esophageal ... Disorders #Algorithm #Differential ... #diagnosis #hematology
Adult-Onset Still's Disease
Clinical triad: Fever, Arthralgia/arthritis, Skin rash ± odynophagia
+ Biological inflammation: Increased neutrophils, Hyperferritinemia, decreased
Clinical triad ... Arthralgia/arthritis, Skin ... fraction < 20% Differential ... diagnosis #management #treatment ... #rheumatology
Symptoms Distinguishing Groups of Cutaneous Drug Reactions
IgE-mediated reactions:
 • Onset minutes to hours into treatment course
Symptoms Distinguishing ... Raised off of the skin ... Blistering and/or skin ... Drug #Reactions #dermatology ... #clinical #comparison
Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS)
Definition: 
 • Severe adverse drug reaction, characterized by
Symptoms: • The ... Edema in 70% of cases ... Skin involvement ... Resolution > 15 days Differentials ... : symptomatic treatment
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
GPA causes disease ... Rarely dominate the clinical ... reticularis Differential ... Polyangiitis #GPA #dermatology ... rash #diagnosis #rheumatology
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
association • M > F Clinical ... oral ulcers in 12 ... ) Differential Diagnosis ... Arthritis, AS Treatment ... #rheumatology #
Vitamin B12 (Cobalamin) Deficiency
Etiology:
 • Vit B12 - aka cobalamin. Present in foods derived from animal
• Common Causes ... intrinsic factor, IF) Clinical ... anemia, yellow skin ... to IBD, celiac disease ... Check for IF ab Treatment
Secondary Syphilis Rash
Secondary syphilis is the most contagious of all the stages of this disease, and
Skin rash and malaise ... The signs and symptoms ... resembling rashes caused ... Rash #Diagnosis #Clinical ... #Photo #Dermatology