13 results
Dermatomyositis (DM) and Polymyositis (PM): Pathogenesis and clinical findings
Elevated Antinuclear Antibodies: Anti-Jo-1, Anti-OJ, Anti-Mi2, Anti-SRP, Anti-EJ,
Dermatomyositis ... regeneration, diffuse CD8 ... development, primarily deltoids ... flexors affected #Dermatomyositis ... PM #Diagnosis #Pathophysiology
Clostridial myonecrosis of deltoid muscle on POCUS

Right shoulder pain case.  Diabetic male with nontraumatic shoulder
myonecrosis of deltoid ... muscle on POCUS ... shoulder pain case ... #muscle #POCUS ... #clinical #MSK #
Clostridial myonecrosis of deltoid muscle on POCUS

Right shoulder pain case.  Diabetic male with nontraumatic shoulder
myonecrosis of deltoid ... muscle on POCUS ... shoulder pain case ... #muscle #POCUS ... #clinical #MSK #
Anterior Shoulder Dislocation: Pathogenesis, clinical, and radiographic findings

Trauma, Fall on, outstretched arm, Overhead throwing => Abduction
tensile strength of muscle ... loss of lateral deltoid ... damage to nerves, muscles ... signs #symptoms #msk ... #orthopedics #pathophysiology
ANTI-MDA5 DERMATOMYOSITIS

Cutaneous manifestations:
• Periorbital heliotrope (blue-purple) rash with edema
• Erythematous rash on the face, or the
ANTI-MDA5 DERMATOMYOSITIS ... Women • ~20% of cases ... Men • ~50% of cases ... vasculopathies • Proximal muscle ... Women • ~30% of cases
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Causes of Neuromuscular ... Demyelinating Disease (MS ... aminoglycosides) • Muscles ... , Polymyositis/dermatomyositis ... Neuromuscular #Weakness #Causes
Hydroxyapatite Deposition Disease (HADD) - MSK Radiology
Imaging Findings:
 • Ovoid hypointense structures along the bursal surface
Disease (HADD) - MSK ... seen within the deltoid ... muscle fibers and ... Case description ... Radiology #diagnosis #msk
Rhabdomyolysis - Differential Diagnosis and Management Summary

Trauma:
 • Immobilization, Crush iniury, Compartment syndrome, Electrical injury
Exertional:
 •
(polymyositis/Dermatomyositis ... ) AKI - Pathophysiology ... fluid into injured muscles ... Management #Summary #causes
Sweet Syndrome

Acute febrile neutrophilic dermatosis (Sweets Syndrome) is a skin condition characterized by fever and inflamed
(malaise) - Muscle ... Causes: - Idiopathic ... multiforme - Dermatomyositis ... - CBC may also
Scurvy (Vitamin C Deficiency) - Diagnosis and Management

Vitamin C is required for hydroxylation of proline residues
nonimmune hemolysis MSK ... • Weakness • Muscle ... , or any other cause ... weeks #Scurvy #Pathophysiology ... #AscorbicAcid #Pathophysiology