210 results
Osteoporosis: Pathogenesis and risk factors

 • Age > 30 (post-peak bone mass)
 • Post-menopausal women ->
30 (post-peak bone ... Decr estrogen • Bone ... liver or kidney disease ... #Osteoporosis #pathophysiology ... #signs #symptoms
Alkaline Phosphatase (ALP) Elevation - Differential Diagnosis Algorithm

ALP:
 - Enzymes that catalyze hydrolysis of organic phosphate
ALP) Elevation - Differential ... - Highest • Bone ... Most common symptoms ... - Bone symptoms ... ALP #Elevation #Differential
Hyperparathyroidism - Primary vs Secondary vs Tertiary 
Lab Comparison:
 • Primary Hyperparathyroidism: ↑→PTH, ↑Calcium, ↑Vitamin D,
Phosphate Physical Symptoms ... signs, Fragile bones ... easily/weakness, Bone ... pain Psychiatric Symptoms ... Secondary #Tertiary #pathophysiology
Gaucher Disease 

Pathophsiology
 • Lysosomal storage disorder
 • Deficiency of ß-glucocerebrosidase
• Accumulation of glucosylceramide in macrophages
Diagnosis
Gaucher Disease ... Pathophsiology ... Osteonecrosis, bone ... #Gauchers #Disease ... Diagnosis #Signs #Symptoms
Lysosomal Storage Disorders

Mucolipidoses
 • I-Cell Disease

Mucopolysaccharidoses
 • Hurler
 • Hunter

Sphingolipidoses
 • Tay Sachs
 • Fabry
 •
Mucolipidoses • I-Cell Disease ... Storage #Disorders #Diseases ... #pathophysiology ... #diagnosis #differential
Causes of Bone/Joint Pain in Sickle Cell Disease
Vaso-occlusive pain:
 • Mechanism: ischemic pain
 • Can present
Causes of Bone/Joint ... in Sickle Cell Disease ... • Differentiate ... Pain #SickleCell #Disease ... #differential #
Stress Fracture: Pathogenesis and clinical findings
Abnormal biomechanics, Repetitive impact activities
=> Repetitive subthreshold mechanical loading
=> Bone strain
=>
mechanical loading => Bone ... strain => Bone ... #orthopedics #pathophysiology ... #symptoms #signs
Meralgia paresthetica: Pathogenesis and Clinical Findings
Compression/injury of Lateral Femoral Cutaneous Nerve (LFCN) -> Meralgia paresthetica
 •
paresthetica • Symptoms ... 3-6 months of symptom ... intervertebral disc disease ... MeralgiaParesthetica #MSK #pathophysiology ... #differential #
Common Hand Fractures on X-Ray
Mallet finger - injury to the lateral extensor slips
Boutonniere deformity - injury
Terry thomas sign Triquetral ... Kienboch disease ... Radiology #Wrist #differential
Causes of Dizziness - Vertigo - Differential Diagnosis Algorithm
True Vertigo - Illusion of Rotary Movement
Peripheral Vestibular
Dizziness - Vertigo - Differential ... vomiting, auditory symptoms ... • Meniere's Disease ... Media • Temporal Bone ... Imbalance, neurologic symptoms