13 results
Inflammatory Joint Pain - Differential Diagnosis Algorithm 
Monoarticular
 • Gout (Podagra, Tophi)
 • Pseudogout
 • Early
Diagnosis Algorithm ... Systemic Lupus Erythematosus ... (Polymyositis/Dermatomyositis ... Inflammatory #JointPain #MSK ... #Differential #
ANTI-MDA5 DERMATOMYOSITIS

Cutaneous manifestations:
• Periorbital heliotrope (blue-purple) rash with edema
• Erythematous rash on the face, or the
with edema • Erythematous ... violaceous macules and erythematous ... auricular papules Clinical ... • Arthralgia/arthritis ... #dermatology #diagnosis
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
) Suspect: Clinical ... permanent alopecia Differential ... Diagnosis: • ANCA-associated ... Still disease, dermatomyositis ... #Diagnosis #Rheumatology
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
likely it will be clinically ... Systemic lupus erythematosus ... , Polymyositis/Dermatomyositis ... #rheumatology #diagnosis ... #differential
Gout (Gouty Arthritis) - MSK Radiology
Imaging Findings:
 • Eccentric soft-tissue densities surrounding the third proximal interphalangeal
Gout (Gouty Arthritis ... ) - MSK Radiology ... mass and NO prior signs ... - **MSK rads ... Differential diagnosis
Lymphocutaneous Sporotrichiosis Infection

Landscaper w/ painless nodular rash of arm present for months wax and wane; diagnosis?
Lymphocutaneous
wax and wane; diagnosis ... Papulonodular, erythematous ... painless, no systemic signs ... biopsy preferred Differential ... #photo #hand
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
Differential Diagnosis ... noninflammatory Signs ... Gonococcal/Lyme etc ... Joint #pain #Differential ... #Diagnosis #MSK
Giant cell arteritis (GCA)

Giant cell arteritis (GCA) definition: Most common systemic inflammatory vasculitis in older adults
Diagnosis = clinical ... systemic sx + signs ... very remarkable w/differential ... vision changes, etc ... GCA #Temporal #Signs
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
syndrome, rheumatoid arthritis ... life-threatening Differential ... and EMG Findings ... test - Cogan sign ... - Peek sign
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Weakness - Differential ... Diagnosis Framework ... Cardiac, pulmonary etc ... Lack of UMN/LMN signs ... Muscle Biopsy: Dermatomyositis