15 results
Spondylolysis & Spondylolisthesis: Pathogenesis and Clinical Findings

Pars interarticularis stress fracture (spondylolysis) - most frequently in the
S1 => Weakened stability ... XR — scotty dog sign ... Spondylolisthesis #MSK ... #diagnosis #pathophysiology ... #signs #symptoms
Stress Fracture: Pathogenesis and clinical findings
Abnormal biomechanics, Repetitive impact activities
=> Repetitive subthreshold mechanical loading
=> Bone strain
=>
micro-damage exceeds ability ... StressFractures #msk ... #orthopedics #pathophysiology ... #symptoms #signs
Maculopapular - Diagnostic Algorithm
Pathophysiology:
- Catch-all term with a wide range of potential pathophysiologic mechanisms and causative
Maculopapular - Diagnostic Algorithm ... Ill-appearing, vital sign ... instability - ... Color #Targetoid #Algorithm ... #Differential #
Causes of Bradykinetic Movement Disorders - Differential Diagnosis Algorithm
Parkinson's Disease (TRAP):
• Resting Tremor
• Cogwheel Rigidity
• Akinesia/Bradykinesia
•
Movement Disorders - Differential ... Diagnosis Algorithm ... Bradykinesia • Postural Instability ... • Cerebellar signs ... #Diagnosis #Algorithm
Femoral Head Fracture: Pathogenesis and clinical findings
 • Posterior hip dislocation -> Impaction force from femoral
onto lateral hip Signs ... Complications: • Inability ... FemoralHead #Fractures #msk ... #diagnosis #pathophysiology ... #signs #symptoms
Hypochloremia - Differential Diagnosis Algorithm

Cause - Decreased Intake:
 • Low salt in diet
 • Exclusive D5W
Hypochloremia - Differential ... Diagnosis Algorithm ... - Gitelman SIGNS ... #Diagnosis #Algorithm ... #Pathophysiology
Lymphomas and Lymphoproliferative Disorders - Differential Diagnosis Algorithm
Hodgkin Lymphoma ~40% - Characteristic For Reed-Sternberg (RS) Cells
Lymphoproliferative Disorders - Differential ... Diagnosis Algorithm ... Amy Chung, MD, MSc ... Classification #pathophysiology ... #algorithm
Meralgia paresthetica: Pathogenesis and Clinical Findings
Compression/injury of Lateral Femoral Cutaneous Nerve (LFCN) -> Meralgia paresthetica
 •
MeralgiaParesthetica #MSK ... #pathophysiology ... #differential # ... diagnosis #signs
Heat Illnesses and Heat Stroke - Differential Diagnosis Framework

Heat Cramps:
 • Muscle pain or spasm -
Heat Stroke - Differential ... Collapse: • Pathophysiology ... → Syncope • Signs ... Exhaustion: • Inability ... heat #illness #differential
Humeral Avulsion of the Inferior Glenohumeral Ligament (HAGL)
 • Imaging Findings:
 • Large defect of the
anterior shoulder instability ... Differential diagnosis ... GAGL): "Reverse J sign ... Radiology #diagnosis #msk