10 results
Erythema Nodosum: In this case, E. Nodosum has occured secondary to 
Streptococcal infection.
Photo credit, Josh Fierer,
Nodosum has occured secondary ... Streptococcal infection ... Fierer, M.D. ... #Dermatology #SkinRash ... #Photo #UCSDH
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
Rash is usually ... Usually composed ... on the back of hands ... #differential #diagnosis ... #dermatology #compared
Drug Erruption: Extensive maculo-papular rash secondary to allergic reaction to Amoxicillin.
Chest and hand are shown above.

Charlie
maculo-papular rash ... secondary to allergic ... Chest and hand are ... #Dermatology #SkinRash ... Amoxicillin #Palms #Photo
Fever and Rash - Differential Diagnosis Framework
 • Viral: Measles, Infectious Mono (EBV, CMV), Acute HIV,
Fever and Rash - ... Viral: Measles, Infectious ... Zoster, Coxsackie (hand ... Meningococcal meningitis, Secondary ... Noninfectious: SJS/TEN, Erythema
Secondary Syphilis Rash
Secondary syphilis is the most contagious of all the stages of this disease, and
Rash Secondary ... treatment, the infection ... the palms of the hands ... #Rash #Diagnosis ... #Clinical #Photo
HSV Herpetic Whitlow Infection of the Finger
20 F presents with painful finger, treated w/ oral cephalexin
Diagnosis? ... oral or genital herpes ... virus into the hand ... onset of edema, erythema ... #photo
Pustular Skin Lesions - Differential Diagnosis Framework

What are pustules?
• Pustules < 5-10 mm + pus
• Material
pus • Material composed ... Irregular pustules on hands ... Burrows between fingers ... Generalized itchy rash ... Secondary syphilis
Eczematous Skin Rash - Differential Diagnosis Algorithm
Eczematous - Pruritic/Scaly/Erythematous lesions. Usually poorly demarcated
 • Atopic Dermatitis
Eczematous Skin Rash ... Secondary to venous ... tapioca-like vesicles on hands ... Well-demarcated erythema ... #Eczematous #SkinRash
Vancomycin induced Leukocytoclastic Vasculitis (LCV) of the Hand
70 M vertebral osteomyelitis on vancomycin and cefepime for
Vasculitis (LCV) of the Hand ... diffuse palpable rash ... Diagnosis? ... Vasculitis #LCV #Hand ... #clinical #photo
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
- Differential Diagnosis ... to exclude are infections ... muscle weakness • Nerves ... , mucositis • Rash ... occasional oligoclonal bands