91 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
Causes of Bradykinetic Movement Disorders - Differential Diagnosis Algorithm
Parkinson's Disease (TRAP):
• Resting Tremor
• Cogwheel Rigidity
• Akinesia/Bradykinesia
•
- Differential Diagnosis ... Algorithm Parkinson's Disease ... • Cerebellar signs ... MovementDisorders #Neurology ... #Differential #Diagnosis
Pseudobulbar Affect
Characteristics (These episodes usually cause distress and impairment in occupational or social functioning):
 - Extreme
Extreme emotional lability ... laughter and crying; Diseases ... ), Alzheimer's Disease ... Pseudobulbar #Affect #neurology ... #differential #diagnosis
Osteoporosis: Pathogenesis and risk factors

 • Age > 30 (post-peak bone mass)
 • Post-menopausal women ->
Leukemia) • GI diseases ... liver or kidney disease ... #Osteoporosis #pathophysiology ... #signs #symptoms ... #diagnosis
Maculopapular - Diagnostic Algorithm
Pathophysiology:
- Catch-all term with a wide range of potential pathophysiologic mechanisms and causative
Maculopapular - Diagnostic ... Algorithm Pathophysiology ... Ill-appearing, vital sign ... instability - ... Immunocompromised #Diagnosis
Rheumatoid Arthritis Summary
MCP and PIP Involvement, Spares DIP, Carpal Tunnel, Sicca Syndrome, Epi/Scleritis, Heart Disease, Rheumatoid
Scleritis, Heart Disease ... Nodules, Pulmonary Disease ... : Atlantoaxial Instability ... Arthritis #RA #diagnosis ... #rheumatology #signs
Indications for Head CT before LP
 - Signs of Increased ICP (i.e. papilledema) 
 - History
CT before LP - Signs ... History of CNS Disease ... Consciousness (i.e. inability ... Immunosuppression - Focal Neurologic
Parinaud's Syndrome
What?
 - Impaired upgaze
 - Light-near dissociation
 - Convergence retraction nystagmus
 - Eyelid retraction (Collier's
retraction (Collier's sign ... → "setting sun sign ... " - Vascular disease ... Parinauds #Syndrome #diagnosis ... #pineal #neurology
Gaucher Disease 

Pathophsiology
 • Lysosomal storage disorder
 • Deficiency of ß-glucocerebrosidase
• Accumulation of glucosylceramide in macrophages
Diagnosis
Gaucher Disease ... Pathophsiology ... in macrophages Diagnosis ... #Gauchers #Disease ... #Diagnosis #Signs
Femoral Head Fracture: Pathogenesis and clinical findings
 • Posterior hip dislocation -> Impaction force from femoral
onto lateral hip Signs ... Complications: • Inability ... Fractures #msk #diagnosis ... #pathophysiology ... #signs #symptoms