12 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
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
Maculopapular - Diagnostic Algorithm
Pathophysiology:
- Catch-all term with a wide range of potential pathophysiologic mechanisms and causative
Diagnostic Algorithm Pathophysiology ... - Pathophysiology ... Ill-appearing, vital sign ... instability - ... Targetoid #Algorithm #Differential
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
Meralgia paresthetica: Pathogenesis and Clinical Findings
Compression/injury of Lateral Femoral Cutaneous Nerve (LFCN) -> Meralgia paresthetica
 •
MeralgiaParesthetica #MSK ... #pathophysiology ... #differential # ... diagnosis #signs
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
Myasthenic Crisis Checklist - Myasthenia Gravis

Evaluation 
 - Chest X-ray and lung ultrasound (exclude other lung
X-ray and lung ultrasound ... Phos), CBC with differential ... fastest approach to stabilize ... monitoring (vital signs
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
10-33% develop MS ... monophasic Pathophysiology ... • Bilateral signs ... Predictive of MS ... management #neurology #differential
Serotonin Syndrome: Pathogenesis and Clinical Findings
Serotonin Syndrome: Variable combination of mental status changes, autonomic instability, and
changes, autonomic instability ... • Autonomic Instability ... Serotonin #Syndrome #Pathophysiology ... #Psychiatry #Diagnosis ... #Signs #Symptoms