12 results
Dermatomyositis
A middle-aged man describes progressive difficulty combing his hair and rising from a seated position over
Dermatomyositis ... 1) heliotrope rash ... , 2) shawl sign, ... usually indicates myopathy ... Papules #Clinical #Photo
Autoimmune Myositis
Necrotizing myopathy is associated with higher CK levels, greater level of muscle weakness, less systemic
Myositis Necrotizing myopathy ... Dermatomyositis ... can present with rash ... , Shaw sign, holster ... sign, and Gottron's
Myositis and Myopathies
Polymyositis 
 • Progressive, symmetric muscle weakness 
 • Elevated CK, +Anti-Jo, +Anti-Mi2
Dermatomyositis
Anti-Jo, +Anti-Mi2 Dermatomyositis ... muscle weakness, rash ... load Drug-induced myopathy ... 5-15% of lupus myopathy ... #differential #
Dermatomyositis with heliotrope rash, shawl sign, and Gottron's papules

A middle-aged man describes progressive difficulty combing his
Dermatomyositis ... with heliotrope rash ... 1) heliotrope rash ... usually indicates myopathy ... dermatology #clinical #photo
Shawl sign poikiloderma in Dermatomyositis

Poikiloderma in general is a common finding in older individuals with chronic
Shawl sign poikiloderma ... along with other signs ... symptoms helps differentiate ... #Rash #Dermatomyositis ... Dermatology #Clinical #Photo
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Weakness - Differential ... Lack of UMN/LMN signs ... proximal weakness Myopathy ... Muscle Biopsy: Dermatomyositis ... #Weakness #Differential
Lymphocutaneous Sporotrichiosis Infection

Landscaper w/ painless nodular rash of arm present for months wax and wane; diagnosis?
Lymphocutaneous
painless nodular rash ... painless, no systemic signs ... biopsy preferred Differential ... Infection #clinical #photo
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
Cord Disorders - Differential ... • Symptoms and signs ... - Radiation myelopathy ... Influenza, EBV, Dengue ... diagnosis #neurology #differential
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
Bacterial Meningitis - Differential ... , chikungunya, dengue ... Maculopapular rash ... Acute meningeal signs ... • Uveitis • Rash
Poikiloderma of Civatte (Photodamage Poikiloderma)

Poikiloderma in general is a common finding in older individuals with chronic
poikiloderma of dermatomyositis ... along with other signs ... symptoms helps differentiate ... #Photodamage #Rash ... Dermatology #Clinical #Photo