48 results
Necrotizing Fasciitis: Note the extensive edema, erythema, bullae formation, and necrosis in this patient's thigh. At
Necrotizing Fasciitis ... extensive edema, erythema ... Images #Clinical #Photo ... #Dermatology #SkinRash ... #Necrotizing #Fasciitis
Erythema Nodosum: In this case, E. Nodosum has occured secondary to 
Streptococcal infection.
Photo credit, Josh Fierer,
Erythema Nodosum ... Photo credit, Josh ... #Dermatology #SkinRash ... #Erythema #ENodosum ... #Photo #UCSDH
Erythema Multiforme: skin eruption secondary to allergic reaction from an antibiotic.

Charlie Goldberg, M.D. - UCSD Catalog
Erythema Multiforme ... #Dermatology #SkinRash ... #Erythema #Multiforme ... #Trunk #Back #Photo
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Causes of Erythema ... Sarcoidosis or Lofgren's syndrome ... Giardiasis #Erythema ... Mnemonic #Causes #Differential ... #Dermatology #SkinRash
Red Leg - Cellulitis Mimickers
 - Unilateral
     • Contact Dermatitis
Acute Gout • Erythema ... • Necrotizing Fasciitis ... Arthritis • Erythema ... redleg #diagnosis #differential
Erythema Annulare Centrifugum (EAC),
This is erythema annulare centrifugum (EAC), one of the “figurate erythemas.” These lesions
Erythema Annulare ... EAC), This is erythema ... the “figurate erythemas ... EAC #clinical #photo ... #dermatology #skinrash
Differential Diagnosis of Necrotizing Fasciitis: 

Cellulitis, 
Superficial abscess, 
Deep vein thrombosis 
(see phlegmasia cerulea dolerans), 
Compartment
Differential Diagnosis ... of Necrotizing Fasciitis ... Compartment syndrome ... #Necrotizing #Fasciitis ... #Differential #
Reactive Skin Rash - Differential Diagnosis Algorithm
Reactive erythematous with various morphology
 • Urticaria - Firm /
Reactive Skin Rash - Differential ... lasts <24hrs • Erythema ... nodules on shins • Erythema ... #Reactive #SkinRash ... #dermatology #Differential
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Lyme disease Erythema ... • Eosinophilic fasciitis ... Erythema nodosum ... Antiphospholipid-antibody syndrome ... #skin #rashes #differential
Erythema Nodosum - Causes and Differential Diagnosis 
Appearance:  erythematous painful lumps usually 1-6 cm in
Erythema Nodosum ... - Causes and Differential ... healing process) #Erythema ... Nodosum #Causes #Differential ... #Dermatology #SkinRash