106 results
Dermatomyositis
A middle-aged man describes progressive difficulty combing his hair and rising from a seated position over
Dermatomyositis ... This is a case of ... 1) heliotrope rash ... , 2) shawl sign, ... Gottrons #Papules #Clinical
Reversed Halo Sign - Infectious and Non-Infectious Differential Diagnosis
Definition: A focal rounded area of GGO surrounded
Reversed Halo Sign ... Non-Infectious Differential ... • Infectious Causes ... Non-Infectious Causes ... , Sarcoidosis, Dermatomyositis
ANTI-MDA5 DERMATOMYOSITIS

Cutaneous manifestations:
• Periorbital heliotrope (blue-purple) rash with edema
• Erythematous rash on the face, or the
(blue-purple) rash ... chest (in a V-sign ... shoulders (in a shawl sign ... Inverse Gottron’s sign ... auricular papules Clinical
Maculopapular - Diagnostic Algorithm
Pathophysiology:
- Catch-all term with a wide range of potential pathophysiologic mechanisms and causative
Diagnostic Algorithm Pathophysiology ... - Pathophysiology ... Ill-appearing, vital sign ... #Dermatology #Rash ... Targetoid #Algorithm #Differential
Dermatomyositis (DM) and Polymyositis (PM): Pathogenesis and clinical findings
Elevated Antinuclear Antibodies: Anti-Jo-1, Anti-OJ, Anti-Mi2, Anti-SRP, Anti-EJ,
Dermatomyositis ... Pathogenesis and clinical ... -> Heliotrope Rash ... PM #Diagnosis #Pathophysiology ... #Signs #Symptoms
Anaplasma Infection - Anaplasma phagocytophilum
Pathophysiology: 
 • Obligate, intracellular bacteria
 • Transmitted via blacklegged tick —
phagocytophilum Pathophysiology ... within morulae Signs ... shaking chills • Rash ... is rare (< 10% cases ... ), cough (30% cases
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
Tree in Bud Sign
The Tree-in-Bud sign represents Endobronchial spread in a linear branching pattern and centrilobular
Tree in Bud Sign ... The Tree-in-Bud sign ... It is caused by ... #diagnosis #clinical ... radiology #ChestCT #pathophysiology
Rhabdomyolysis - Differential Diagnosis and Management Summary

Trauma:
 • Immobilization, Crush iniury, Compartment syndrome, Electrical injury
Exertional:
 •
Rhabdomyolysis - Differential ... Immobilization, Crush ... (polymyositis/Dermatomyositis ... ) AKI - Pathophysiology ... Management #Summary #causes
Subjective Tinnitus: Pathogenesis and clinical findings
Subjective Tinnitus - Perceived sound with no acoustic stimulus, heard only
Pathogenesis and clinical ... refers to sound caused ... #Tinnitus #Causes ... #pathophysiology ... #differential #