11 results
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
hemorrhage, which are ... reddish-purple lesions ... : - Autoimmune ... for hepatitis B and ... cryoglobulins • Skin
Sweet Syndrome

Acute febrile neutrophilic dermatosis (Sweets Syndrome) is a skin condition characterized by fever and inflamed
and mucosal lesions ... sudden onset of a rash ... - Rash: multiple ... papules) on the arms ... Leukocytoclastic vasculitis
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
lesions • Mononeuritis ... mucositis - Rash ... : • Behçet Syndrome ... • Cogan Syndrome ... Ocular inflammatory lesions-interstitial
Lymphocutaneous Sporotrichiosis Infection

Landscaper w/ painless nodular rash of arm present for months wax and wane; diagnosis?
Lymphocutaneous
painless nodular rash ... of arm present ... trauma leads to skin ... papulonodular lesions ... #hand
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
loss, arthralgia, arm ... bruits, asymmetric arm ... , mucositis • Rash ... occasional oligoclonal bands ... : • Skin lesions
Secondary Syphilis Rash
Secondary syphilis is the most contagious of all the stages of this disease, and
Skin rash and malaise ... heaped, wart-like lesions—Condyloma ... the palms of the hands ... faint that they are ... Diagnosis #Clinical #Photo
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
centrifugum • A chronic skin ... of necrotizing vasculitis ... on the back of hands ... classic targetoid lesions ... • Causes are multiple
Vancomycin induced Leukocytoclastic Vasculitis (LCV) of the Hand
70 M vertebral osteomyelitis on vancomycin and cefepime for
(LCV) of the Hand ... diffuse palpable rash ... infections, foods, autoimmune ... #LCV #Hand #skinrash ... dermatology #clinical #photo
Pustular Skin Lesions - Differential Diagnosis Framework

What are pustules?
• Pustules < 5-10 mm + pus
• Material
Pustular Skin Lesions ... sterile and are ... Irregular pustules on hands ... Generalized itchy rash ... SAPHO syndrome (
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
3rd Decade Skin ... papulosquamous lesions ... disease • Non-autoimmune ... deficiencies • Autoimmune ... Seizures • Strokes Skin