26 results
Systemic Lupus Erythematosus (SLE): Musculoskeletal Manifestations

 • Immune Complex Deposition
    - Arthralgia, Arthritis
Systemic Lupus Erythematosus ... #Systemic #Lupus ... Erythematosus #SLE #MSK ... Complications #pathophysiology ... #signs #symptoms
Systemic Lupus Erythematosus - Diagnosis
Manifestations:
 - Arthritis 69%
 - Malar rash 40%
 - Fever 36%
 -
Nephropathy 16% - Oral ... (aPL) 30-45% Differential ... autoantibodies #signs #symptoms ... #mimickers #differential ... #rheumatology
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
three primary pathophysiologic ... Post-strep GN, Lupus ... Idiopathic • Normal ... Glomerulonephritis #Vasculitis #differential ... diagnosis #algorithm #rheumatology
Stress Fracture: Pathogenesis and clinical findings
Abnormal biomechanics, Repetitive impact activities
=> Repetitive subthreshold mechanical loading
=> Bone strain
=>
Pathogenesis and clinical ... findings Abnormal ... StressFractures #msk ... #orthopedics #pathophysiology ... #symptoms #signs
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
to 1:1 F:M • Clinical ... Constitutional symptoms ... constitutional symptoms ... 40, F:M 9:1 • Clinical ... comparison #table #rheumatology
Meralgia paresthetica: Pathogenesis and Clinical Findings
Compression/injury of Lateral Femoral Cutaneous Nerve (LFCN) -> Meralgia paresthetica
 •
Pathogenesis and Clinical ... paresthetica • Symptoms ... MeralgiaParesthetica #MSK ... #pathophysiology ... #differential #
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
) Suspect: Clinical ... sedimentation rate + Normal ... permanent alopecia Differential ... Non-autoimmune rheumatologic ... : • Symptoms limited
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
context of other symptoms ... likely it will be clinically ... , Drug-induced Lupus ... ANA #patterns #rheumatology ... #diagnosis #differential
Lymphomas and Lymphoproliferative Disorders - Differential Diagnosis Algorithm
Hodgkin Lymphoma ~40% - Characteristic For Reed-Sternberg (RS) Cells
can have extra nodal ... pattern of spread, B symptoms ... Amy Chung, MD, MSc ... Classification #pathophysiology ... #Hematology #Diagnosis
Bandemia Overview

Normal: < 1%
Clinically significant: > 10%

Band neutrophils are slightly less mature than segmented neutrophils and
: < 1% Clinically ... ) Differential ... likelihood of negative clinical ... #Bandemia #differential ... #pathophysiology