14 results
Erythema Multiforme: skin eruption secondary to allergic reaction from an antibiotic.

Charlie Goldberg, M.D. - UCSD Catalog
: skin eruption ... secondary to allergic ... Images #Clinical #Dermatology ... #SkinRash #Erythema ... #Trunk #Back #Photo
Erythema Nodosum: In this case, E. Nodosum has occured secondary to 
Streptococcal infection.
Photo credit, Josh Fierer,
Erythema Nodosum ... : In this case, ... Nodosum has occured secondary ... Images #Clinical #Dermatology ... #SkinRash #Erythema
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
purple, hemorrhagic skin ... leakage of RBC's secondary ... reactions • Erythema ... Differential #Diagnosis #hematology ... #nonpalpable #dermatology
Reactive Skin Rash - Differential Diagnosis Algorithm
Reactive erythematous with various morphology
 • Urticaria - Firm /
Reactive Skin Rash ... Differential Diagnosis Algorithm ... #Reactive #SkinRash ... #dermatology #Differential ... #causes
Vascular Skin Lesions - Differential Diagnosis Algorithm
 - Petechiae < 0.2 cm diameter
 - Purpura 0.2
Vascular Skin Lesions ... cm diameter - Purpura ... Vascular #Vasculitis #SkinRash ... #dermatology #Differential ... #causes
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
Involving the Skin ... Leukocytoclastic Vasculitis Secondary ... Petechiae, Palpable purpura ... vasculitis • Erythema ... #dermatology #rheumatology
Acute Purpura Fulminans Skin Rash on Physical Exam 
60 year old male ITP s/p splenectomy 
1d
Skin Rash on Physical ... Exam 60 year ... rigors, diarrhea, nausea ... fulminans secondary ... Rash #clinical #photo
Eczematous Skin Rash - Differential Diagnosis Algorithm
Eczematous - Pruritic/Scaly/Erythematous lesions. Usually poorly demarcated
 • Atopic Dermatitis
Eczematous Skin ... Secondary to venous ... Well-demarcated erythema ... #Eczematous #SkinRash ... #causes
Cryofibrinogenemia Summary

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

Cryofibrinogenemia:
 • The precipitation of a
of 37°C to the near-freezing ... necrosis • Purpura ... Painful or pruritic erythema ... cryoglobulins • Negative causes ... #hematology
Eosinophil Disorders Testing Algorithm
INDICATIONS FOR TESTING:
 • Peripheral blood eosinophilia/hypereosinophilia uncovered incidentally during medical evaluation or
Disorders Testing Algorithm ... • Screen for secondary ... (common causes ... symptoms (eg, skin ... Differential #diagnosis #hematology