40 results
Generalized Hyperpigmentation Differentials
Use the Mnemonic "no skin SPARED"

Images from dermnet.nz and merckmanuals

Mnemonic from https://www.medscape.com/slideshow/dermatology-mnemonics-6011359#5 #diagnosis #differential
Hyperpigmentation Differentials ... the Mnemonic "no skin ... #symptoms #signs ... #dermatology #skin ... #skinrash
Stages of Syphilis
Early Primary:
 • Painless chancre
 • Regional lymphadenopathy
Early Secondary:
 • Fever, malaise
 • Rash
lymphadenopathy Early Secondary ... Fever, malaise • Rash ... testing • No symptoms ... lesions in bone, skin ... #signs #diagnosis
Secondary Syphilis Rash
Secondary syphilis is the most contagious of all the stages of this disease, and
Rash Secondary ... Skin rash and malaise ... The signs and symptoms ... treatment, the infection ... #Clinical #Photo
Lymphocutaneous Sporotrichiosis Infection

Landscaper w/ painless nodular rash of arm present for months wax and wane; diagnosis?
Lymphocutaneous
painless nodular rash ... trauma leads to skin ... painless, no systemic signs ... biopsy preferred Differential ... #clinical #photo
Christmas Tree Rash of Pityriasis rosea
 - small oval scaling patches
 - Christmas tree pattern
 -
Christmas Tree Rash ... parallel to lines of skin ... palms/soles - Differential ... diagnosis: secondary ... #dermatology #photo
Urticaria (hives): Skin reaction that occurs in response to cold, food allergies, meds, environmental exposures, stings,
infections
Urticaria (hives): Skin ... exposures, stings, infections ... with systemic symptoms ... Images #Clinical #Photo ... #Dermatology #SkinRash
Necrotizing Fasciitis: African-American patient with diabetes that predisposed him to rapidly 
progressive infection. Lower extremity is
less apparent secondary ... As the infection ... occurs deep to the skin ... Images #Clinical #Photo ... Dermatology #Leg #SkinRash
Combination of Skin Findings and Arthritis in Pediatrics Patient - Differential Diagnosis
Malar rash: 
 • A
Combination of Skin ... on texture of skin ... migrans: • Target sign ... Suggestive of Lyme infection ... dermatology #arthritis #skin
Eosinophil Disorders Testing Algorithm
INDICATIONS FOR TESTING:
 • Peripheral blood eosinophilia/hypereosinophilia uncovered incidentally during medical evaluation or
• Screen for secondary ... organ-specific signs ... or symptoms (eg ... , skin or esophageal ... Disorders #Algorithm #Differential
Acute Purpura Fulminans Skin Rash on Physical Exam 
60 year old male ITP s/p splenectomy 
1d
Purpura Fulminans Skin ... purpura fulminans secondary ... - BIDMC Infectious ... Purpura #Fulminans #Skin ... #photo