11 results
Mechanic’s Hands in Dermatomyositis

Finally, mechanic’s hands which are common to Anti-synthetase syndrome and another type of
in Dermatomyositis ... Anti-synthetase syndrome ... typically present with erythema ... #SkinRash #Dermatomyositis ... Dermatology #Clinical #Photo
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Seborrhea • Dermatomyositis ... Erythema chronicum ... Lyme disease Erythema ... Antiphospholipid-antibody syndrome ... #skin #rashes #differential
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
Cutaneous manifestations associated with myelodysplastic syndrome
 • Myeloid hemopathy with the most frequent skin lesions (20%)
myelodysplastic syndrome ... Pyoderma gangrenosum, Erythema ... manifestations (dermatomyositis ... myelodysplastic #syndrome ... #differential #
Gottron's Papules in Dermatomyositis

Another classic clue is Gottron's papules which are small grouped flat topped papules
Gottron's Papules in Dermatomyositis ... surrounded by erythema ... tendons on the hands ... Dermatology #Clinical #Photo ... #Hands #Knuckles
Fever and Rash - Differential Diagnosis Framework
 • Viral: Measles, Infectious Mono (EBV, CMV), Acute HIV,
Fever and Rash - Differential ... Zoster, Coxsackie (hand ... Noninfectious: SJS/TEN, Erythema ... , DRESS, Sweet syndrome ... #Fever #Rash #Differential
Holster Sign in Dermatomyositis

Interestingly, poikiloderma and violaceous erythema can occur in sun protected areas as well
Holster Sign in Dermatomyositis ... and violaceous erythema ... #Sign #Thighs #SkinRash ... #Dermatomyositis ... Dermatology #Clinical #Photo
Eczematous Skin Rash - Differential Diagnosis Algorithm
Eczematous - Pruritic/Scaly/Erythematous lesions. Usually poorly demarcated
 • Atopic Dermatitis
Eczematous Skin Rash - Differential ... tapioca-like vesicles on hands ... Well-demarcated erythema ... #Eczematous #SkinRash ... #dermatology #Differential
Vancomycin induced Leukocytoclastic Vasculitis (LCV) of the Hand
70 M vertebral osteomyelitis on vancomycin and cefepime for
Vasculitis (LCV) of the Hand ... Differential for ... Churg-Strauss syndrome ... #skinrash #dermatology ... #clinical #photo
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
Autoimmune Myositis - Differential ... Antisynthetase syndrome ... • Mechanic's hands ... paraneoplastic syndrome ... #rheumatology #differential