34 results
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
decades of life Causes ... trigger - Direct skin ... - Ice cube test ... , TempTest test ... Urticaria #diagnosis #rheumatology
Childhood Immunization Schedule: Why we immunize
 • Diphtheria Toxin -> URT inflammation causes pseudomembrane with hardened
replicates within CNS ... invade URT & via hematologic ... induces vascular & CNS ... CNS and hematologic ... that persists as skin
Pruritus - Generalized Differential Diagnosis Algorithm - Systemic and Primary Causes
== Primary Skin Lesions ==
Macules /
Systemic and Primary Causes ... == Primary Skin ... Liver Function Tests ... #generalized #dermatology ... Diagnosis #Algorithm #causes
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
purple, hemorrhagic skin ... • Secondary Causes ... deficiencies - PNH ... Differential #Diagnosis #hematology ... #rheumatology #
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
response to local skin ... Positive pathergy test ... (this is a skin ... prick test that ... signs #symptoms #rheumatology
Nikolsky's Sign in Toxic Epidermal Necrolysis (TEN)

Nikolsky's sign is a clinical dermatological sign which is present
rubbing of the skin ... syndrome, caused ... Nikolskys #Sign #TEN #Dermatology ... #PhysicalExam # ... Clinical #SJS #skin
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... Fecal occult blood test ... cryoglobulins • Skin ... Diagnosis #Algorithm #Causes ... #dermatology #physicalexam
Venous Thrombosis vs Arterial Thrombosis - Differential Diagnosis Framework

VENOUS THROMBOSIS

 • Acquired Risk Factors:
	- >48 hours
Testosterone - Coumadin skin ... considered in all cases ... coagulation and other causes ... - COVID-19 - PNH ... pathophysiology #hematology
SAPHO Syndrome Summary

What?
SAPHO syndrome is a rare chronic inflammatory disorder of bone, joint, and skin characterized
bone, joint, and skin ... blisters containing pus ... • Pustular skin ... Rule out other causes ... blockers had the best
ANTI-MDA5 DERMATOMYOSITIS

Cutaneous manifestations:
• Periorbital heliotrope (blue-purple) rash with edema
• Erythematous rash on the face, or the
ulcerations • Skin ... ulcerations • Auricular skin ... -74%] • Blood tests ... • Skin vasculopathies ... #dermatology #diagnosis