18 results
Stress Fracture: Pathogenesis and clinical findings
Abnormal biomechanics, Repetitive impact activities
=> Repetitive subthreshold mechanical loading
=> Bone strain
=>
strain => Bone ... micro-damage exceeds ability ... StressFractures #msk ... #orthopedics #pathophysiology ... #symptoms #signs
Spondylolysis & Spondylolisthesis: Pathogenesis and Clinical Findings

Pars interarticularis stress fracture (spondylolysis) - most frequently in the
S1 => Weakened stability ... slippage of vertebral body ... Spondylolisthesis #MSK ... #diagnosis #pathophysiology ... #signs #symptoms
Diagram of different types of bone tumors that can occur around the knee on XRay -
involucrum • Paget disease ... phase • Paget disease ... blade of grass sign ... #Differential #Radiology ... #XRay #msk #lesions
Femoral Head Fracture: Pathogenesis and clinical findings
 • Posterior hip dislocation -> Impaction force from femoral
tear a portion of bone ... Complications: • Inability ... FemoralHead #Fractures #msk ... #diagnosis #pathophysiology ... #signs #symptoms
Diagram of different types of bone tumors that can occur around the knee on XRay
Age <
involucrum • Paget disease ... phase • Paget disease ... blade of grass sign ... Differential #Diagnosis #Radiology ... #XRay #MSK #pediatrics
Polycythemia Vera (PV) - Diagnosis and Management Summary
Diagnostic Criteria:
 • Elevated hemoglobin and/or hematocrit AND
 •
Hypercellular bone ... present, symptoms, signs ... • Treatment is ... von Willebrand disease ... #hematology
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
Lymphohistiocytosis (HLH) Pathophysiology ... , Biological + Bone ... /ml, ↑ LDH • Bone ... • Autoimmune diseases ... #summary #rheumatology
X-Linked Agammaglobulinemia: Pathogenesis and clinical findings
The epidemiology of this disease is 1/340,000 births and roughly double
epidemiology of this disease ... history of the disease ... Signs of immunodeficiency ... cells in blood and bone ... Agammaglobulinemia #XLinked #pathophysiology
Gout (Gouty Arthritis) - MSK Radiology
Imaging Findings:
 • Eccentric soft-tissue densities surrounding the third proximal interphalangeal
Radiology Imaging ... mass and NO prior signs ... diffuse chondral disease ... mri #clinical #Radiology ... #rheumatology
Humeral Avulsion of the Inferior Glenohumeral Ligament (HAGL)
 • Imaging Findings:
 • Large defect of the
anterior shoulder instability ... • Bony Humeral ... GAGL): "Reverse J sign ... mri #clinical #Radiology ... #diagnosis #msk